FR EA
1032-00006 · Halcyon Semiconductor Inc · APA Application
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PRIVILEGED AND CONFIDENTIAL — ATTORNEY WORK PRODUCT

MEMORANDUM

TO: Leonard Cross, Partner, Tax — Calderwood & Harkness LLP

CC: Sylvia Hartwell, Partner, Tax; Robert Jansen, Associate, Tax

FROM: Leila Nazari, Senior Associate, Tax — Calderwood & Harkness LLP

DATE: May 12, 2025

RE: Preparation for Pre-Filing Conference with IRS APMA — May 19, 2025; Bilateral APA — Halcyon Semiconductor AG (C&H Matter No. 1032-00006; Billing Code HSAG-TP-2025)

PRIVILEGE NOTICE: This memorandum is protected by the attorney-client privilege and the work product doctrine. It is prepared in anticipation of the pre-filing conference scheduled for May 19, 2025, and reflects counsel's mental impressions, legal strategies, and recommendations. Do not distribute outside the Calderwood & Harkness engagement team without prior authorization from Leonard Cross.

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I. Purpose and Background

A. Purpose of This Memorandum

This memorandum is intended to serve as the primary preparation document for the Calderwood & Harkness LLP engagement team in advance of the anonymous pre-filing conference with the Internal Revenue Service Advance Pricing and Mutual Agreement Program ("APMA"), currently scheduled for May 19, 2025, at the IRS APMA offices in Washington, D.C. The memorandum addresses several interrelated objectives that are critical to the success of the pre-filing conference and, ultimately, to the formal bilateral Advance Pricing Agreement ("APA") process.

First, this memorandum summarizes the key facts, proposed transfer pricing methodology, and APA terms as presented in the Pre-Filing Memorandum that was submitted to IRS APMA on April 14, 2025. The Pre-Filing Memorandum was prepared anonymously, consistent with the requirements of Revenue Procedure 2015-41, Section 3.03, and described the taxpayer in general terms without identifying Halcyon Semiconductor AG or Halcyon Semiconductor Inc. by name. This memorandum synthesizes that submission into a working reference for the engagement team and supplements it with internal strategic analysis that was not, and should not be, included in the pre-filing submission.

Second, this memorandum identifies the questions and lines of inquiry that the IRS APMA team is most likely to raise during the pre-filing conference. For each anticipated question, the memorandum provides recommended talking points and response strategies. These talking points are designed to present the taxpayer's positions accurately and persuasively while preserving the anonymity of the engagement and avoiding premature concessions on any substantive issue.

Third, this memorandum outlines the protocol and ground rules for the anonymous pre-filing conference, including anonymity requirements, permissible disclosures, the roles of each C&H attendee, and the materials that should be brought to the conference. Adherence to these ground rules is essential both to protect the client's identity at this stage and to comply with the procedural requirements of the APMA pre-filing process.

Fourth, this memorandum identifies potential areas of IRS concern and formulates proactive messaging strategies. The goal is to ensure that the engagement team enters the pre-filing conference with a thorough understanding of the weaknesses and strengths of the taxpayer's positions so that we can address IRS concerns candidly and constructively, while steering the discussion toward the merits of the proposed approach.

B. Engagement Background

Calderwood & Harkness LLP was retained by Halcyon Semiconductor AG ("HSAG"), a corporation organized and existing under the laws of the Federal Republic of Germany, and Halcyon Semiconductor Inc. ("HSI"), a Delaware corporation and wholly owned US subsidiary of HSAG, on February 3, 2025. The formal engagement letter was executed on March 10, 2025, following completion of internal conflicts clearance and the establishment of the matter file under C&H Matter No. 1032-00006.

The scope of the engagement encompasses the preparation and prosecution of a bilateral Advance Pricing Agreement between the United States Internal Revenue Service and the German Bundeszentralamt für Steuern ("BZSt"), the German federal tax authority that serves as the competent authority under the US-Germany Income Tax Treaty. The bilateral APA will cover intercompany transactions in the HSAG–HSI US-Germany supply chain, including the establishment of arm's-length transfer pricing methodologies and pricing ranges for the covered transactions. The engagement also encompasses the preparation of contemporaneous transfer pricing documentation, including a Master File and Local File, consistent with OECD and US documentation requirements.

The covered transactions fall into three principal categories:

(1) Tangible Goods (Wafer/Die Sales): The intercompany sale of semiconductor wafers and singulated die from HSAG (as manufacturer) to HSI (as US distributor), conducted pursuant to the Master Intercompany Supply Agreement between the parties, which has been effective since January 1, 2019, and was amended on July 1, 2022.

(2) Royalties (IP License): Royalty payments from HSI to HSAG for the use of proprietary semiconductor process technology and design libraries, conducted pursuant to the IP License Agreement between the parties, which has been effective since January 1, 2019.

(3) Cost-Sharing Contributions under a Qualified Cost Sharing Arrangement: Payments by HSI representing its share of qualified research and development costs under the Qualified Cost Sharing Arrangement ("CSA") between HSAG and HSI, which has been effective since July 15, 2018, and covers next-generation 2nm and sub-2nm semiconductor process technology development.

In aggregate, these three categories of intercompany transactions represent substantial annual flows. For the fiscal year ended December 31, 2024, the aggregate intercompany flows were approximately €1.28 billion, broken down as follows: €987.6 million in tangible goods (wafer/die sales), €68.4 million in royalties (IP license), and €224.6 million in cost-sharing contributions, for a total of €1,280.6 million. These flows represent a material portion of both HSAG's consolidated revenues and HSI's cost structure, underscoring the importance of transfer pricing certainty for both entities and both taxing jurisdictions.

The pre-filing memorandum was submitted anonymously to IRS APMA on April 14, 2025. Consistent with the anonymous pre-filing process, the memorandum described the taxpayer as a "European-headquartered semiconductor manufacturer" and its US subsidiary as a "US distribution and design subsidiary," without naming HSAG or HSI, without identifying Germany as the European jurisdiction, and without providing employer identification numbers or tax identification numbers. The purpose of the anonymous submission was to gauge APMA's preliminary receptivity to the proposed bilateral APA, the proposed transfer pricing methodologies, the rollback request, and the overall transaction structure before committing to the formal application process and the associated $113,500 user fee.

C. Attendees

The following individuals will attend the pre-filing conference on behalf of the taxpayer's representatives:

• Leonard Cross, Partner, Tax, Calderwood & Harkness LLP — Lead presenter. Leonard will open the conference, provide the high-level overview of the taxpayer's business, the covered transactions, and the proposed APA framework, and serve as the primary point of contact with the APMA team throughout the conference.

• Leila Nazari, Senior Associate, Tax, Calderwood & Harkness LLP — Supporting presenter. Leila will address technical questions relating to the transfer pricing economic analysis, the benchmarking methodology, the CUT analysis for the royalty, the CPM/TNMM analysis for tangible goods, and the cost-sharing arrangement mechanics, including the PCT valuation.

• Robert Jansen, Associate, Tax, Calderwood & Harkness LLP — Note-taker. Robert will maintain a detailed contemporaneous record of all questions asked by the IRS APMA team, all statements made by C&H representatives, and all areas of IRS concern or interest identified during the conference. Robert should not volunteer substantive comments during the conference unless directed to do so by Leonard.

On the IRS side, the conference will be attended by the APMA team leader assigned to the matter (who will be identified at the conference) and potentially one or two APMA economists. We should anticipate that the APMA economist(s) will focus on the benchmarking methodology, the comparables selection process, the CUT analysis, and the PCT valuation, while the team leader will focus on procedural questions, the rollback request, and the bilateral coordination with Germany.

Importantly, client personnel will not attend the pre-filing conference. Priya Raghavan (Vice President, Tax, Halcyon Semiconductor Inc.) and Dr. Erwin Fassbinder (Leiter Steuerabteilung, Halcyon Semiconductor AG) have been informed that their participation is not appropriate at this stage, consistent with the anonymous pre-filing protocol. Their attendance would risk inadvertent disclosure of identifying information and would be inconsistent with the arm's-length distance that should be maintained between the taxpayer and the IRS at the pre-filing stage.

Similarly, Kettner Pflüger Rechtsanwälte (Dr. Tobias Kettner and Friederike Lang), HSAG's German tax counsel, will not attend the pre-filing conference. Their role at this stage is limited to coordinating the parallel German APA application to BZSt and ensuring that the German and US filings are substantively aligned.

Finally, Meridian Economics GmbH (Dr. Annika Breitner), the transfer pricing economics firm retained by C&H to prepare the benchmarking analysis and economic report, will not attend. Their work product underlies the economic positions presented in the pre-filing memorandum and will be central to the formal APA application, but at the pre-filing conference, C&H counsel will present and defend the economic analysis as part of our legal representation of the client.

II. Summary of Pre-Filing Memorandum Positions

This section summarizes the key substantive positions presented in the Pre-Filing Memorandum submitted to IRS APMA on April 14, 2025. The engagement team should be thoroughly familiar with each of these positions, as they form the foundation for the discussion at the pre-filing conference.

A. Taxpayer Profile (as Anonymously Described)

The Pre-Filing Memorandum describes the taxpayer in the following terms, which are the only terms that may be used during the pre-filing conference:

The "Applicant Parent" is a large European-headquartered semiconductor manufacturer that is publicly traded on a major European stock exchange. The Applicant Parent designs and manufactures advanced-node semiconductor wafers utilizing 7-nanometer, 5-nanometer, and 3-nanometer process technologies. These semiconductors are designed for and sold into the automotive, industrial Internet of Things ("IoT"), and data-center applications markets, which represent the highest-growth segments of the global semiconductor industry.

The Applicant Parent's consolidated financial profile is that of a large-scale, IP-intensive, vertically integrated semiconductor manufacturer. For fiscal year 2024, the Applicant Parent reported consolidated revenue exceeding €8 billion, with an EBITDA margin of approximately 30 percent. Total research and development expenditure exceeded €1.4 billion, representing approximately 16 percent of consolidated revenue. This level of R&D intensity is consistent with the Applicant Parent's position as a technology leader in advanced-node semiconductor manufacturing. The Applicant Parent operates multiple fabrication facilities ("fabs") in Europe and employs a global workforce of approximately 22,400 employees, of whom approximately 14,600 are based in the home jurisdiction.

The "US Subsidiary" or "US Co-Applicant" is a wholly owned subsidiary of the Applicant Parent, incorporated in the United States. The US Subsidiary serves as the exclusive distribution, marketing, and design-support entity for the Applicant Parent's products in the US market. The US Subsidiary is headquartered in Texas, with a design center in California and regional sales offices throughout the United States. For fiscal year 2024, the US Subsidiary reported net revenue of approximately $4.12 billion (representing third-party US sales), with an operating margin of approximately 4.8 percent. The US Subsidiary employs approximately 2,850 people across its US operations.

The US Subsidiary's functional profile is that of a limited-risk distributor with value-added design-support and marketing capabilities. While the US Subsidiary does employ semiconductor design engineers at its California design center who provide customer-specific design support and application engineering services, it does not own significant unique intangibles, does not conduct independent R&D (other than through its participation in the CSA), and does not bear significant market risk beyond the routine risks associated with distribution and customer-facing activities. Inventory risk is substantially mitigated by the intercompany supply agreement terms, which provide for consignment-like inventory management and limited returns provisions.

B. Covered Transactions

The Pre-Filing Memorandum identifies three primary categories of covered transactions, plus the Platform Contribution Transaction associated with the CSA:

1. Tangible Goods (Wafer/Die Sales). The Applicant Parent manufactures semiconductor wafers and singulated die at its European fabrication facilities and sells these products to the US Subsidiary under the Master Intercompany Supply Agreement ("MISA"). The MISA has been in effect since January 1, 2019, and was amended on July 1, 2022, primarily to update the product scope to include 3nm-node products and to revise the payment terms from net-60 to net-45 days. For fiscal year 2024, intercompany purchases of tangible goods by the US Subsidiary from the Applicant Parent totaled €987.6 million, which is equivalent to approximately $1.076 billion at the average 2024 EUR/USD exchange rate of 1.0896. These intercompany purchases represent the single largest category of covered transactions and account for approximately 77 percent of the aggregate intercompany flows.

2. Royalties (IP License). The US Subsidiary pays a royalty to the Applicant Parent for the right to use the Applicant Parent's proprietary semiconductor process technology and design libraries in connection with the US Subsidiary's marketing, distribution, and design-support activities. The royalty is paid pursuant to an IP License Agreement that has been in effect since January 1, 2019. The royalty rate is currently set at 6.0 percent of the US Subsidiary's "IP-attributable revenues," which is a contractually defined term representing the subset of the US Subsidiary's net US revenues that are attributable to products incorporating the licensed intellectual property. For fiscal year 2024, the royalty payment totaled €68.4 million (approximately $70.5 million). IP-attributable revenues for FY 2024 were approximately $1.175 billion, representing 18.1 percent of HSI's total net US revenues of $4.12 billion. The remainder of HSI's revenues relates to commodity and legacy-node products for which no separate IP license royalty is charged, as those products are compensated through the transfer price on tangible goods alone.

3. Cost-Sharing Contributions (R&D CSA). The Applicant Parent and the US Subsidiary are parties to a Qualified Cost Sharing Arrangement that has been in effect since July 15, 2018. The CSA covers the joint development of next-generation 2-nanometer and sub-2-nanometer semiconductor process technology. Under the CSA, each participant bears its share of qualified R&D costs in proportion to its anticipated benefit share. The US Subsidiary's cost-sharing percentage is 22.5 percent, reflecting the anticipated proportion of benefits from CSA-developed technology that will be realized through exploitation in the North American market. For fiscal year 2024, total qualified R&D costs under the CSA were €998.2 million (a subset of the Applicant Parent's total R&D expenditure of €1,420 million; the remaining R&D relates to maintenance of existing process technologies and non-CSA activities). The US Subsidiary's share of qualified CSA costs for FY 2024 was therefore €224.6 million (€998.2 million × 22.5%).

4. Platform Contribution Transaction ("PCT"). In connection with the formation of the CSA in 2018, the US Subsidiary made a buy-in payment (Platform Contribution Transaction) of $312.5 million to the Applicant Parent. The PCT compensated the Applicant Parent for making its pre-existing process technology and design library IP available to the US Subsidiary as a platform for the CSA's joint development activities. The PCT was valued using the income method, as prescribed by Treasury Regulation § 1.482-7(g)(4), with a discount rate of 11.8 percent (derived from a weighted average cost of capital analysis of semiconductor industry participants) and a 15-year projection period reflecting the expected useful life of the pre-existing platform technology. The PCT valuation was performed by Stonebridge Valuation Partners LLC, an independent valuation firm, under the direction of Marcus Reinhardt, Managing Director.

C. Proposed Transfer Pricing Methods

The Pre-Filing Memorandum proposes the following transfer pricing methods for each category of covered transactions:

For the tangible goods transaction, the Comparable Profits Method ("CPM") under US terminology, equivalent to the Transactional Net Margin Method ("TNMM") under OECD terminology, is proposed as the best method. The US Subsidiary is selected as the tested party because it is the least complex entity in the controlled transaction, performing routine distribution, marketing, and limited design-support functions without owning significant unique intangibles. The profit level indicator is the operating margin (operating income divided by net revenue). The benchmarking analysis, prepared by Meridian Economics GmbH under C&H direction, identified an interquartile range of operating margins of 2.8 percent to 6.1 percent, with a median of 4.4 percent, based on a set of 17 comparable North American semiconductor distributors over the fiscal years 2020 through 2024.

For the royalty transaction, the Comparable Uncontrolled Transaction ("CUT") method is proposed as the primary method, with a residual profit split analysis presented as corroborative support. Eight comparable uncontrolled license agreements for semiconductor intellectual property were identified from the Clearpoint Royalty Database and publicly available SEC filings. The interquartile range of royalty rates in these comparable agreements is 3.5 percent to 8.2 percent, with a median of 5.6 percent. The proposed royalty rate of 6.0 percent falls within the IQR and above the median, which is appropriate given the advanced-node nature of the licensed technology and the breadth of the intangibles covered by the license (including both process technology and design libraries).

For the cost-sharing arrangement, the income method is used to determine the anticipated benefit shares, consistent with Treasury Regulation § 1.482-7. The US Subsidiary's cost-sharing percentage of 22.5 percent reflects the anticipated proportion of benefits from North American exploitation of CSA-developed technology, calculated using multi-year revenue projections for products incorporating the next-generation technology. The benefit share is subject to triennial review and adjustment.

D. Proposed APA Term and Rollback

The Pre-Filing Memorandum proposes the following APA coverage period:

Prospective APA Term: Five tax years, covering the period from January 1, 2025, through December 31, 2029.

Rollback Request: Three prior tax years, covering the period from January 1, 2022, through December 31, 2024.

Total Covered Period: Eight tax years (2022–2029).

The bilateral APA will be sought between the IRS and BZSt under Article 25 of the Convention between the United States of America and the Federal Republic of Germany for the Avoidance of Double Taxation and the Prevention of Fiscal Evasion with Respect to Taxes on Income and Capital and to Certain Other Taxes, signed June 29, 2006 (the "US-Germany Income Tax Treaty"). The formal application will be filed pursuant to Revenue Procedure 2015-41, which sets forth the procedures for requesting an APA from the IRS.

The rollback request is predicated on the consistency of the taxpayer's intercompany pricing policies and transfer pricing methods throughout the rollback period. As discussed in detail in Section III.D below, the covered transactions have been conducted under the same intercompany agreements, using the same pricing mechanisms, and with the same functional allocation of activities, assets, and risks since at least 2018 (for the CSA) and 2019 (for the tangible goods and royalty transactions). There have been no material changes in business operations, product lines, distribution structure, or risk allocation between the rollback years and the prospective APA years.

E. Benchmarking Data Summary

The economic benchmarking analysis underlying the Pre-Filing Memorandum positions was performed by Meridian Economics GmbH, under the direction of Dr. Annika Breitner, pursuant to C&H's engagement of Meridian as an expert economics consultant. The key benchmarking results are summarized below:

CPM/TNMM Benchmark Set (Tangible Goods). The benchmark set consists of 17 comparable North American semiconductor distributors. The comparables were selected through a systematic screening process that applied both quantitative criteria (SIC/NAICS codes, minimum revenue thresholds, public company status) and qualitative criteria (elimination of entities with significant manufacturing, IP ownership, non-distribution revenue, financial distress, or substantial related-party transactions). Financial data for the comparables was collected for fiscal years 2020 through 2024, and five-year weighted average operating margins were computed to smooth the significant cyclicality that characterizes the semiconductor industry. The resulting interquartile range of operating margins is 2.8 percent to 6.1 percent, with a median of 4.4 percent. The US Subsidiary's actual FY 2024 operating margin of 4.80 percent falls within the interquartile range and slightly above the median, supporting the arm's-length nature of the current intercompany pricing.

CUT Benchmark Set (Royalties). The benchmark set consists of 8 comparable uncontrolled license agreements for semiconductor intellectual property. These agreements were identified from the Clearpoint Royalty Database, a proprietary database of license agreements maintained by Clearpoint Research LLC, and from publicly available filings with the US Securities and Exchange Commission. Each of the eight agreements involves the licensing of semiconductor process technology or closely related intellectual property, and each was evaluated for comparability based on factors including the type of technology licensed, the exclusivity of the license, the geographic scope, the technology maturity level, and the definition of the royalty base. The interquartile range of royalty rates is 3.5 percent to 8.2 percent, with a median of 5.6 percent. The proposed royalty rate of 6.0 percent is within the IQR and above the median.

CSA Benefit Shares. The US Subsidiary's anticipated benefit share of 22.5 percent was determined using the income method, based on projected North American revenue as a percentage of global revenue for products incorporating CSA-developed next-generation technology. The PCT buy-in payment of $312.5 million was valued separately using the income method with an 11.8 percent discount rate and a 15-year projection period. The PCT valuation was performed by Stonebridge Valuation Partners LLC and is supported by detailed financial projections and a WACC analysis specific to the semiconductor industry.

III. Anticipated IRS Questions and Talking Points

This section identifies the questions and lines of inquiry that we anticipate the IRS APMA team will raise during the pre-filing conference. For each anticipated question or topic area, the section provides recommended talking points and response strategies. The engagement team should review these talking points carefully and be prepared to deliver them in a natural, conversational manner during the conference. The talking points are organized by transaction category and substantive issue.

A. Method Selection — Tangible Goods

A.1. Why CPM/TNMM Rather Than CUP or Resale Price Method?

Anticipated question: The IRS is likely to ask why the taxpayer has not applied the Comparable Uncontrolled Price ("CUP") method to the tangible goods transaction, given that there is an active global market for semiconductor wafers. The IRS may also ask why the Resale Price Method ("RPM") was not selected, given that the US Subsidiary functions primarily as a distributor.

Talking point — CUP rejection: While it is true that there is an active market for certain types of semiconductor wafers, the wafers and singulated die sold intercompany in this case are custom-designed, advanced-node products manufactured using the Applicant Parent's proprietary 7nm, 5nm, and 3nm process technologies. These are not commodity products traded on open markets with observable pricing. They are application-specific integrated circuits designed for particular automotive, industrial IoT, and data-center applications. Finding sufficiently comparable uncontrolled transactions for these products would be extremely difficult, and the comparability adjustments that would be required to account for differences in product specifications, volume, technology node, customer relationship, and contract terms would overwhelm the analysis and undermine the reliability of the CUP method. For these reasons, the CUP method was considered and rejected as part of the best method analysis.

Talking point — RPM rejection: The Resale Price Method was also considered but was determined to be less reliable than the CPM/TNMM for this taxpayer. The RPM relies on gross margin comparisons, which are most reliable when the tested party performs minimal value-added functions between purchase and resale. In this case, however, the US Subsidiary performs significant value-added functions beyond simple distribution, including design-support engineering services provided through its California design center, application-specific marketing and technical sales support, and customer relationship management for major OEM accounts. These value-added functions make gross margin comparisons with simpler distributors less reliable. By contrast, the CPM/TNMM, which uses operating margin as the profit level indicator, captures the full range of the US Subsidiary's functions and expenses at the operating income level, providing a more reliable measure of arm's-length compensation.

Talking point — CPM/TNMM as best method: The CPM/TNMM with operating margin as the profit level indicator is the best method under the best method rule set forth in Treasury Regulation § 1.482-1(c). The tested party — the US Subsidiary — is the least complex entity in the controlled transaction. It performs routine distribution, marketing, and limited design-support functions. It does not own unique, high-value intangibles. It does not bear significant entrepreneurial risk. The CPM/TNMM is the standard method for testing the arm's-length returns of limited-risk distributors, and this application is consistent with well-established IRS practice and OECD Transfer Pricing Guidelines.

A.2. Why Test US Subsidiary Rather Than Parent?

Anticipated question: The IRS may ask why the US Subsidiary was selected as the tested party rather than the Applicant Parent, which is the manufacturer and the seller in the intercompany goods transaction.

Talking point — Least complex entity: The selection of the tested party in a CPM/TNMM analysis is governed by the principle that the tested party should be the entity for which the most reliable comparables can be identified and for which the analysis is most straightforward. In this case, the US Subsidiary is the least complex entity. It performs distribution, marketing, and limited design-support functions — functions for which there is a robust population of comparable companies in the North American market. By contrast, the Applicant Parent is a highly complex, vertically integrated, IP-rich principal entity. It conducts over €1.42 billion in annual R&D, operates multiple fabrication facilities with cutting-edge process technology, and owns all of the core process technology and design library intellectual property. Identifying reliable comparables for such an entity — a large-scale, advanced-node semiconductor manufacturer with proprietary IP — would be extremely challenging, and the analysis would be far less reliable than one that tests the US Subsidiary's routine returns.

Talking point — Regulatory and OECD support: The selection of the US Subsidiary as the tested party is fully consistent with Treasury Regulation § 1.482-5(b)(2), which provides that the tested party should be the party for which data is available and reliable. It is also consistent with the guidance in Chapter II of the OECD Transfer Pricing Guidelines, which instructs that in applying the TNMM, the tested party should generally be the party to which the method can be applied most reliably and for which the most comparable data is available — typically the least complex of the parties to the transaction.

A.3. Comparables Selection and Screening

Anticipated question: The IRS is likely to ask about the process by which the 17 comparable companies were identified and selected. APMA economists are generally meticulous about comparables selection criteria and will want to understand the screening methodology in detail.

Talking point — Quantitative screens: The comparables search was conducted using the Drayton Services Inc. database and supplemented by research in publicly available financial databases. The initial quantitative screens included: (i) domicile in North America (United States or Canada); (ii) publicly traded, with sufficient financial data available for fiscal years 2020 through 2024; (iii) classification under SIC codes 5065 (Electronic Parts and Equipment, Not Elsewhere Classified) and related NAICS codes for semiconductor and electronic component distribution; (iv) minimum annual revenue thresholds to ensure comparability in scale with the US Subsidiary's operations; and (v) elimination of entities with significant manufacturing operations or ownership of unique intellectual property, as evidenced by R&D expenditure ratios significantly exceeding those of distribution companies.

Talking point — Qualitative screens: Following the quantitative screens, each remaining company was subjected to qualitative analysis based on publicly available descriptions of its business operations, including SEC filings (10-K annual reports and proxy statements), company websites, and industry databases. Companies were eliminated if they derived substantial revenue from non-distribution activities (such as contract manufacturing, original design manufacturing, or proprietary product development), if they were diversified conglomerates with significant operations outside the semiconductor industry, if they were in financial distress (as evidenced by going concern qualifications, bankruptcy filings, or restructuring activities), or if they had significant related-party transactions that could distort their reported financial results.

Talking point — Use of multi-year weighted averages: A five-year weighted average of operating margins (fiscal years 2020 through 2024) was used to compute the interquartile range and median, rather than relying on single-year data. This approach is essential in the semiconductor industry, which is characterized by pronounced cyclicality driven by fluctuations in end-market demand, inventory cycles, and capital expenditure patterns. Using a five-year weighted average smooths the impact of cyclical peaks and troughs and produces a more reliable measure of the comparables' sustainable, arm's-length operating margins.

Talking point — Willingness to share details: We should note to the APMA team that the full comparables list, the detailed screening criteria, and the underlying financial data for each comparable company will be provided in the formal APA application. At the pre-filing stage, we are prepared to discuss the methodology at a general level but will reserve the detailed company-specific data for the formal submission.

B. Royalty Rate — CUT Analysis

B.1. Comparability of the Eight CUT Agreements

Anticipated question: IRS economists are likely to probe the comparability of the eight uncontrolled license agreements that form the basis of the CUT analysis. Specifically, the IRS may ask whether the agreements truly involve semiconductor intellectual property, how comparable the licensed technology is to the Applicant Parent's advanced-node process technology, and what comparability adjustments were considered.

Talking point — Nature of the eight agreements: All eight of the comparable license agreements involve the licensing of semiconductor process technology or closely related semiconductor intellectual property. These agreements were sourced from two categories of data: (i) the Clearpoint Royalty Database, which is a widely used proprietary database of license agreements that compiles information from court filings, SEC disclosures, and other public sources; and (ii) publicly available filings with the US Securities and Exchange Commission, including license agreements filed as material contracts in 10-K and 8-K filings. Each agreement was reviewed to confirm that the licensed technology was semiconductor process technology or a closely related form of semiconductor IP (such as design automation tools, fabrication process specifications, or semiconductor packaging technology).

Talking point — Comparability factors considered: In evaluating the comparability of each agreement, the following factors were considered: (i) the type of technology licensed (process technology vs. design technology vs. other semiconductor IP); (ii) the exclusivity of the license (exclusive vs. non-exclusive); (iii) the geographic scope of the license (worldwide vs. regional); (iv) the maturity of the licensed technology (cutting-edge vs. legacy-node); (v) the definition of the royalty base (net sales, net revenues, or other measure); and (vi) the nature of the licensor-licensee relationship (whether the parties were unrelated or had pre-existing business relationships). Comparability adjustments were considered for each of these factors but were ultimately determined to be unnecessary for most of the agreements, because the selected agreements were sufficiently comparable on the key dimensions. Where minor differences existed, the impact on royalty rates was assessed and determined to be within the natural range of variation in the benchmark set.

Talking point — Robustness of the IQR: The resulting interquartile range of 3.5 percent to 8.2 percent, with a median of 5.6 percent, is a robust and reliable benchmark for the Applicant Parent's royalty rate. The proposed 6.0 percent rate falls within the IQR and above the median. The above-median positioning is appropriate because the Applicant Parent's licensed technology — advanced-node 7nm, 5nm, and 3nm process technology plus comprehensive design libraries — represents the cutting edge of semiconductor manufacturing and commands a premium relative to the more general semiconductor IP that is the subject of several of the comparables. Stated differently, the proposed rate reflects the high-value nature of the licensed intangibles while remaining well within the range of arm's-length rates established by the comparables.

B.2. Relationship Between Royalty and CPM/TNMM Results

Anticipated question: The IRS may ask how the royalty relates to the CPM/TNMM analysis for tangible goods and whether there is a risk of double-counting — i.e., whether the combined effect of the intercompany transfer price on goods and the royalty payment results in an inappropriate allocation of profits.

Talking point — IP-attributable revenues as a separate base: The royalty is computed on "IP-attributable revenues," which is a contractually defined term representing the subset of the US Subsidiary's net US revenues that are attributable to products incorporating the Applicant Parent's licensed process technology and design libraries. For FY 2024, IP-attributable revenues were approximately $1.175 billion, representing approximately 18.1 percent of HSI's total net US revenues of $4.12 billion. The remaining 81.9 percent of HSI's revenues relates to commodity products and legacy-node products for which the intercompany transfer price on tangible goods is the sole pricing mechanism. This separation ensures that the royalty is targeted to the specific revenue stream that benefits from the licensed IP, rather than being applied broadly across all revenues.

Talking point — Operating margin is after royalty: The CPM/TNMM analysis for tangible goods tests the US Subsidiary's operating margin, which is computed after deducting all operating expenses, including the royalty payment to the Applicant Parent. The US Subsidiary's FY 2024 operating margin of 4.80 percent is calculated after deducting the $70.5 million royalty payment as an operating expense. The benchmarking analysis confirms that this after-royalty operating margin falls within the interquartile range of the 17 comparable companies (2.8 percent to 6.1 percent). Therefore, the CPM/TNMM result already incorporates the royalty, and there is no double-counting.

Talking point — Residual profit split corroboration: As an additional check, a residual profit split analysis was performed to corroborate the combined effect of the tangible goods pricing, the royalty, and the cost-sharing contributions on the overall profit allocation between the Applicant Parent and the US Subsidiary. In the residual profit split, routine returns are first allocated to each party based on comparable arm's-length returns for their respective routine functions, and the residual profit is then allocated based on each party's relative contributions of unique intangibles. The residual profit allocation is consistent with the 6.0 percent royalty rate, confirming that the royalty, as one component of the overall intercompany pricing structure, results in an appropriate allocation of profits between the two entities.

Talking point — Preparedness for detailed walkthrough: We are prepared to walk the APMA team through the interaction mechanics in detail, showing how the transfer price on goods, the royalty, and the cost-sharing contributions work together to allocate the appropriate levels of routine and residual profit to each entity. We should offer this walkthrough if the IRS expresses any concern about double-counting or inconsistency between the pricing mechanisms.

B.3. CUT vs. Profit Split as Primary Method

Anticipated question: The IRS may ask why the CUT method was selected as the primary method for the royalty rather than a residual profit split, particularly given the complexity of the intercompany relationship and the significance of the licensed intangibles.

Talking point — CUT as more direct method: The CUT method is a transaction-based method that directly compares the controlled royalty rate to royalty rates in comparable uncontrolled transactions. When sufficiently reliable comparable transactions are available, the CUT method is generally preferred under the best method rule because it provides a more direct and objective measure of the arm's-length price than profit-based methods. In this case, we have identified eight comparable uncontrolled license agreements for semiconductor IP that provide a reliable benchmark range. The CUT method is therefore the most direct and reliable method available.

Talking point — Profit split as corroborative: The residual profit split analysis is used as a corroborative, secondary method to validate the CUT result. While the residual profit split is a well-established method and is appropriate for transactions involving unique and valuable intangibles, it requires significantly more assumptions than the CUT method. Specifically, the residual profit split requires the determination of routine returns for each party, the identification and valuation of each party's unique intangible contributions, and the allocation of residual profits based on relative intangible contributions. Each of these steps introduces additional subjectivity and analytical uncertainty. By contrast, the CUT method relies primarily on observable market data — the royalty rates in comparable uncontrolled agreements — and requires fewer assumptions.

Talking point — Consistency of results: Importantly, both methods reach consistent results. The CUT analysis supports a royalty rate of 6.0 percent (within the IQR of 3.5 percent to 8.2 percent, above the median of 5.6 percent), and the residual profit split analysis independently confirms that a 6.0 percent royalty rate, in combination with the other intercompany pricing mechanisms, produces a profit allocation that is consistent with each party's functions, assets, and risk contributions. This consistency reinforces the arm's-length nature of the proposed royalty rate and provides APMA with multiple analytical perspectives supporting the same conclusion.

C. Cost Sharing Arrangement

C.1. PCT Valuation and Buy-In Payment

Anticipated question: The IRS is very likely to ask detailed questions about the $312.5 million Platform Contribution Transaction buy-in payment made by the US Subsidiary in 2018. The PCT valuation is frequently one of the most contentious issues in CSA-related APA proceedings, and we should expect the APMA team to probe the key assumptions underlying the valuation.

Talking point — Methodology overview: The PCT was valued using the income method prescribed by Treasury Regulation § 1.482-7(g)(4). The valuation was performed by Stonebridge Valuation Partners LLC, an independent valuation firm with extensive experience in transfer pricing valuations for the semiconductor and technology industries. The engagement was led by Marcus Reinhardt, Managing Director, a Certified Valuation Analyst and Accredited Senior Appraiser with over twenty years of experience in intangible asset valuations.

Talking point — Key parameters: The two most significant parameters in the income method valuation are the discount rate and the projection period. The discount rate of 11.8 percent was derived from a weighted average cost of capital ("WACC") analysis of publicly traded semiconductor industry participants, adjusted for the specific risk profile of the pre-existing platform technology being contributed to the CSA. The WACC analysis incorporated market-derived equity risk premiums, industry-specific beta coefficients, and an appropriate debt-to-equity capital structure. The 15-year projection period was selected to reflect the expected useful economic life of the pre-existing platform technology — that is, the period over which the technology would continue to generate revenue through products incorporating the licensed IP, taking into account technology obsolescence cycles in the semiconductor industry.

Talking point — Scope of PCT: The PCT covered the Applicant Parent's pre-existing process technology and design library intellectual property that was contributed to the CSA as of the CSA's effective date of July 15, 2018. This included the Applicant Parent's established process technology for 7nm and 5nm nodes, as well as the design libraries and electronic design automation tools that had been developed prior to the CSA. The PCT did not cover any technology developed after the CSA effective date, which is funded through the ongoing cost-sharing payments.

Talking point — Sensitivity analysis: We should anticipate that the IRS will challenge either the discount rate or the projection period, as these are the levers that most significantly affect the PCT value. Our sensitivity analysis — which was included in the Pre-Filing Memorandum at a summary level — shows that varying the discount rate by plus or minus 100 basis points (i.e., from 10.8 percent to 12.8 percent) and varying the projection period by plus or minus two years (i.e., from 13 years to 17 years) produces a range of PCT values from approximately $275 million to approximately $360 million. The $312.5 million actual PCT payment falls within this range and near the central estimate. This sensitivity analysis demonstrates that the PCT value is not unduly sensitive to reasonable variations in the key assumptions and that the actual payment is within the range of arm's-length outcomes. We should be prepared to present this sensitivity analysis if the IRS presses on the specific parameters.

C.2. Anticipated Benefit Shares

Anticipated question: The IRS is likely to ask how the 22.5 percent anticipated benefit share was determined for the US Subsidiary, and whether the benefit share remains consistent with current and projected revenue patterns.

Talking point — Basis for the benefit share: The US Subsidiary's anticipated benefit share of 22.5 percent reflects the projected proportion of global revenues from products incorporating CSA-developed next-generation 2nm and sub-2nm technology that will be realized through exploitation in the North American market. The benefit share was calculated at the inception of the CSA in 2018 using multi-year revenue projections for the relevant product lines, taking into account historical North American market share, projected market growth rates for automotive, industrial IoT, and data-center applications in North America relative to other regions, and the expected timeline for commercialization of CSA-developed technology.

Talking point — Periodic review and confirmation: The CSA terms provide for a triennial review and, if necessary, adjustment of the anticipated benefit shares to reflect changes in the parties' actual and projected benefit patterns. The initial 22.5 percent share was set at the CSA's inception in 2018 and has been confirmed through periodic review. The most recent triennial review, conducted in 2021, confirmed that the 22.5 percent benefit share remains appropriate based on updated revenue projections and actual market data. The next triennial review is scheduled for 2024, and the results of that review will be included in the formal APA application.

Talking point — FY 2024 cost-sharing calculation: For fiscal year 2024, total qualified R&D costs under the CSA were €998.2 million. These qualified costs represent a subset of the Applicant Parent's total annual R&D expenditure of €1,420 million; the difference of approximately €422 million relates to R&D activities that are outside the scope of the CSA, including maintenance and incremental improvement of existing process technologies and R&D for product lines that are not covered by the CSA. The US Subsidiary's share of qualified CSA costs for FY 2024 is €998.2 million multiplied by 22.5 percent, which equals €224.6 million. This amount was paid by the US Subsidiary to the Applicant Parent during FY 2024 and is reflected as an operating expense in the US Subsidiary's financial statements.

C.3. Periodic Adjustment Evaluation

Anticipated question: The IRS may ask whether a periodic adjustment has been triggered under Treasury Regulation § 1.482-7(i), which provides for adjustments to CSA cost-sharing payments or PCT payments if actual results diverge significantly from the anticipated results used in the original valuation.

Talking point — No periodic adjustment triggered: No periodic adjustment has been triggered since the CSA was executed in July 2018. The periodic adjustment provisions of Treasury Regulation § 1.482-7(i) require an evaluation of whether actual results are within the range of outcomes that were reasonably anticipated at the time the CSA was entered into. Our annual evaluation has confirmed that actual revenue patterns, technology development timelines, and commercialization results have been within the range of anticipated outcomes used in both the PCT valuation and the benefit share determination. Specifically, the North American share of revenues from products incorporating CSA-related technology has remained within a reasonable range of the 22.5 percent benefit share, and the overall income stream from the pre-existing platform technology has tracked within the range of the projections used in the PCT income method valuation.

Talking point — Annual evaluation process: We evaluate the periodic adjustment provisions annually as part of the taxpayer's ongoing transfer pricing compliance process. A comprehensive periodic adjustment analysis is prepared each year, comparing actual results against the reasonably anticipated results that were projected at the time of the CSA formation. The full analysis for each year through FY 2024 will be included as part of the formal APA application, providing APMA with complete transparency into the evaluation methodology and results.

D. Rollback Request

D.1. Justification for Three-Year Rollback (2022–2024)

Anticipated question: The IRS may question the basis for the three-year rollback request and ask what justification exists for extending the APA coverage to include the prior tax years 2022 through 2024.

Talking point — Consistency of pricing policies: The single most important justification for the rollback is the consistency of the taxpayer's intercompany pricing policies and transfer pricing methods throughout the rollback period. The covered transactions have been conducted under the same intercompany agreements — the Master Intercompany Supply Agreement (effective January 1, 2019, as amended July 1, 2022), the IP License Agreement (effective January 1, 2019), and the Qualified Cost Sharing Arrangement (effective July 15, 2018) — throughout the rollback period. The same transfer pricing methods (CPM/TNMM for tangible goods, CUT for royalties, income method for cost-sharing) have been applied consistently. The same pricing mechanisms and royalty rates have been in effect.

Talking point — No material changes in FAR profile: There have been no material changes in the functions, assets, or risks of either the Applicant Parent or the US Subsidiary between the rollback years and the prospective APA years. The same business model has been in operation: the Applicant Parent manufactures advanced-node semiconductor products in Europe and sells them to the US Subsidiary for distribution in the US market. The US Subsidiary has performed the same distribution, marketing, and design-support functions throughout. The product lines, customer base, and distribution structure have been substantially the same. The July 1, 2022 amendment to the MISA — which updated the product scope to include 3nm-node products and revised payment terms — does not represent a material change in the functional or risk profile of the intercompany relationship; it was a routine commercial update reflecting the natural progression of the Applicant Parent's product portfolio.

Talking point — Double taxation risk elimination: Granting the rollback will eliminate double taxation risk for the open prior years and provide certainty for both the US and German taxing jurisdictions. Without the rollback, the rollback years would remain subject to potential audit scrutiny in both jurisdictions, with the attendant risk of inconsistent treatment by the IRS and BZSt. The bilateral APA, including the rollback, provides a coordinated resolution that serves the interests of both tax administrations and the taxpayer.

Talking point — Statutory and procedural basis: Revenue Procedure 2015-41, Section 2.04(2), expressly permits the rollback of an APA to prior tax years if the taxpayer's facts and circumstances are substantially the same for the rollback years as for the prospective APA years. We believe this standard is clearly met here, given the consistency described above.

Talking point — Contemporaneous documentation support: Contemporaneous transfer pricing documentation, including Master Files and Local Files, has been prepared for each of the rollback years (FY 2022, FY 2023, and FY 2024). This documentation supports the consistency of the pricing policies and the arm's-length nature of the intercompany transactions for each rollback year. The documentation will be provided to APMA as part of the formal APA application.

D.2. Audit History

Anticipated question: The IRS is likely to ask whether HSI has been subject to IRS examination for any of the rollback years and whether there are any pending transfer pricing adjustments or other tax controversies.

Talking point — No pending IRS examination: No IRS examination of the US Subsidiary's transfer pricing is currently pending for any of the rollback years (2022, 2023, or 2024). The US Subsidiary has not received any Notice of Proposed Adjustment or other formal communication from the IRS relating to Section 482 adjustments for any of these years. There are no open or pending transfer pricing disputes with the IRS.

Talking point — No German audit targeting in-scope transactions: On the German side, the Applicant Parent has not been subject to a German tax audit (Betriebsprüfung) specifically targeting the intercompany transactions that are within the scope of the proposed APA for the rollback years. While the Applicant Parent, as a large corporation, is subject to routine German tax audit cycles, no audit findings or proposed adjustments have been issued with respect to the covered transactions for the rollback years.

Talking point — No prior MAP or competent authority request: Neither the Applicant Parent nor the US Subsidiary has filed a Mutual Agreement Procedure ("MAP") request or competent authority request under the US-Germany Income Tax Treaty for any prior year with respect to the covered transactions. There is no prior history of bilateral dispute resolution or competent authority intervention relating to these intercompany transactions. This clean audit and dispute resolution history underscores the appropriateness of the rollback request and the absence of any controversial or disputed prior-year positions.

E. Bilateral Process and Treaty

E.1. German Competent Authority Coordination

Anticipated question: The IRS is likely to ask about the status of the German side of the bilateral APA process. Specifically, the APMA team will want to know whether the German competent authority (BZSt) has been contacted and what the timeline is for the parallel German application.

Talking point — German counsel coordination: Kettner Pflüger Rechtsanwälte, a leading German tax law firm based in Frankfurt am Main, serves as the Applicant Parent's German tax counsel. The engagement with Kettner Pflüger is led by Dr. Tobias Kettner, a senior partner specializing in international tax and transfer pricing, with support from Friederike Lang, an associate in the firm's transfer pricing practice. Kettner Pflüger will coordinate the preparation and filing of the parallel German APA application to the Bundeszentralamt für Steuern.

Talking point — Target filing timeline: The target submission date for the German APA application is August 15, 2025, approximately five weeks after the US filing target of July 7, 2025. This sequencing is intentional: we plan to file the US application first, incorporating any feedback received from the May 19 pre-filing conference, and then file the German application shortly thereafter. The modest lag between the US and German filings will allow Kettner Pflüger to ensure that the German application is fully aligned with the US application on all substantive issues, including the proposed methods, the covered transactions, and the APA term and rollback.

Talking point — German documentation requirements: The German documentation will be prepared in compliance with the relevant German legal requirements, including Section 1 of the Außensteuergesetz ("AStG"), Sections 90(3) and 162(3)–(4) of the Abgabenordnung ("AO"), and the Gewinnabgrenzungsaufzeichnungsverordnung ("GAufzV"), which sets forth Germany's transfer pricing documentation requirements. Kettner Pflüger is coordinating with Meridian Economics GmbH to ensure that the German documentation is consistent with the economic analysis underlying the US application.

Talking point — Bilateral process framework: The bilateral APA process will proceed under Article 25 of the US-Germany Income Tax Treaty, which provides the legal framework for Mutual Agreement Procedure and competent authority negotiations. Both the IRS (through APMA) and the BZSt are expected to engage simultaneously once both applications have been filed. The goal is for the two competent authorities to negotiate a bilateral agreement that resolves the transfer pricing treatment of the covered transactions for the full eight-year coverage period (2022–2029) in a manner that eliminates double taxation and provides certainty for the taxpayer in both jurisdictions.

E.2. Treaty Provisions

Anticipated question: The IRS may ask which specific treaty articles are implicated by the proposed bilateral APA.

Talking point — Relevant treaty provisions: Three articles of the US-Germany Income Tax Treaty are particularly relevant to the proposed bilateral APA:

(i) Article 9 (Associated Enterprises): Article 9 establishes the arm's-length standard for transactions between associated enterprises and provides the basis for transfer pricing adjustments. It authorizes each Contracting State to adjust the profits of an enterprise if conditions between associated enterprises differ from those that would be established between independent enterprises.

(ii) Article 25 (Mutual Agreement Procedure): Article 25 provides the procedural framework for the bilateral APA. It authorizes the competent authorities of the two Contracting States to endeavor to resolve by mutual agreement any difficulties or doubts arising as to the interpretation or application of the Treaty, including the resolution of cases of double taxation. The bilateral APA will be concluded as a mutual agreement between the IRS and BZSt under Article 25.

(iii) Article 7 (Business Profits): Article 7 addresses the attribution of business profits to enterprises of a Contracting State and is relevant to the overall framework for profit allocation between the Applicant Parent and the US Subsidiary.

Talking point — OECD Guidelines as interpretive framework: In addition to the treaty provisions, the OECD Transfer Pricing Guidelines for Multinational Enterprises and Tax Administrations (2022 edition) serve as interpretive guidance under both US and German domestic law. The OECD Guidelines are referenced in the US Treasury Regulations and are incorporated by reference into German transfer pricing law through Section 1 AStG and the administrative guidelines issued by the German Federal Ministry of Finance. The proposed transfer pricing methods and the economic analysis in the Pre-Filing Memorandum are fully consistent with the OECD Guidelines.

IV. Protocol for Anonymous Pre-Filing Conference

This section establishes the ground rules and procedural protocol for the anonymous pre-filing conference on M