# EDGAR Filing Document

**Accession Number:** 0001122411
**File Stem:** 0000950103-26-008008
**Filing Date:** 2026-5
**Character Count:** 59611
**Document Hash:** b0bfdafaa668cf6f914cbd4a1833081e
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0000950103-26-008008.hdr.sgml**: 20260529

**ACCESSION NUMBER**: 0000950103-26-008008

**CONFORMED SUBMISSION TYPE**: SD

**PUBLIC DOCUMENT COUNT**: 3

**FILED AS OF DATE**: 20260529

**DATE AS OF CHANGE**: 20260529

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** ASE Technology Holding Co., Ltd.
- **CENTRAL INDEX KEY:** 0001122411
- **STANDARD INDUSTRIAL CLASSIFICATION:** SEMICONDUCTORS & RELATED DEVICES [3674]
- **ORGANIZATION NAME:** 04 Manufacturing
- **EIN:** 000000000
- **STATE OF INCORPORATION:** F5
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** SD
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-16125
- **FILM NUMBER:** 261038836

**BUSINESS ADDRESS:**
- **ADDRESS IS A NON US LOCATION:** YES
- **STREET 1:** 26, CHIN 3RD RD.
- **STREET 2:** NANZIH DISTRICT
- **CITY:** KAOHSIUNG
- **PROVINCE COUNTRY:** F5
- **ZIP:** 811
- **BUSINESS PHONE:** 886-7-361-7173

**MAIL ADDRESS:**
- **ADDRESS IS A NON US LOCATION:** YES
- **STREET 1:** 26, CHIN 3RD RD.
- **STREET 2:** NANZIH DISTRICT
- **CITY:** KAOHSIUNG
- **PROVINCE COUNTRY:** F5
- **ZIP:** 811

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** ASE Industrial Holding Co., Ltd.
- **DATE OF NAME CHANGE:** 20180430

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** ADVANCED SEMICONDUCTOR ENGINEERING INC
- **DATE OF NAME CHANGE:** 20000822

**UNITED STATES**

**SECURITIES AND EXCHANGE COMMISSION**

**Washington, D.C. 20549**

**FORM SD**

**SPECIALIZED DISCLOSURE REPORT**

![](image_001.jpg)

**ASE Technology Holding Co., Ltd.**<br> (Exact name of the registrant as specified in its charter)

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| | |
|:---|:---|
| Taiwan, Republic of China | 001-16125 |
| (State or other jurisdiction of incorporation) | (Commission file number) |
| 26, Chin 3rd Rd., Nanzih Dist.,<br> Kaohsiung, Taiwan, Republic of China |  |
| (Address of principal executive offices) | (Zip code) |
| Joseph Tung, +886-2-6636-5678 | Joseph Tung, +886-2-6636-5678 |

---

(Name and telephone number, including area code, of the person to contact in connection with this report)

Check the appropriate box to indicate the rule pursuant to which this form is being filed, and provide the period to which the information in this form applies:

☒ Rule 13p-1 under the Securities Exchange Act (17 CFR 240.13p-1) for the reporting period from January 1 to December 31, 2025.

**Section 1 — Conflict Minerals Disclosure**

**Item 1.01 and 1.02 Conflict Minerals Disclosure and Report, Exhibit** 

**Conflict Minerals Disclosure**

Our Form SD and our Conflict Minerals Report for the year ended December 31, 2025 filed as Exhibit 1.01 to this Form SD are available at<br> <u>https://www.aseglobal.com/csr/responsible-procurement/conflict-minerals-compliance</u>

**Section 2 – Exhibits**

**Item 2.01 Exhibits**

Exhibit 1.01 – Conflict Minerals Report for the reporting period January 1, 2025 to December 31, 2025

\* \* \* \* \*

**SIGNATURE**

**ASE Technology Holding Co., Ltd.**

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| | | |
|:---|:---|:---|
| By: | <u>/s/ Jason C.S. Chang</u><br>Jason C.S. Chang<br>Principal Executive Officer | Date: <u>May 29, 2026</u> |

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**EXHIBIT INDEX**

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| | |
|:---|:---|
| **Exhibit<br> Number** | **Description** |
| 1.01 | Conflict Minerals Report for the reporting period January 1, 2025 to December 31, 2025 |

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## Exhibit 1.01

**Exhibit 1.01**

**ASE Technology Holding Co., Ltd.**

**Conflict Minerals Report**

**For the year ended December 31, 2025**

**Corporate Overview**

ASE Technology Holding Co., Ltd. ("ASEH", "we", "our", or "us") is the leading provider of semiconductor manufacturing services in assembly and testing, and the provider of electronic manufacturing services. ASEH packages bare semiconductors into finished semiconductors with enhanced electrical and thermal characteristics; provides testing services, including front-end engineering testing, wafer probing and final testing services; engages in the designing, assembling, manufacturing and sale of electronic components and telecommunications equipment motherboards and substrate production.

We have manufacturing facilities located in Taiwan, China, Malaysia, Japan, Singapore, South Korea, the Philippines, and the United States of America that provide packaging, testing and materials design and production services to many semiconductor companies around the world. A typical customer engagement involves receiving consigned silicon wafers from the customer, performing a series of manufacturing services to the wafers, and delivering a completed, packaged integrated circuit back to the customer.

We provide a broad range of electronic manufacturing services to a global customer base through USI Inc. and its subsidiaries (collectively "USI") with facilities located in Taiwan, China, Mexico, Poland, Vietnam, Africa, Tunisia, and in European countries. In providing these services, we acquire numerous electronic and non-electronic components, and assemble them into sub-assemblies and finished products.

**Product Scope**

ASEH provides solutions, including integrated design, manufacturing, packaging, testing, and electronic and substrate manufacturing. Raw materials used in aforementioned service or product provided by us are in the scope of this report. We determine gold, tin, tungsten or tantalum ("3TG" or "conflict minerals") are "necessary to the functionality or production" of a product manufactured or contracted to be manufactured by ASEH.

(1) For our packaging and materials design
 and production services, we typically add gold and tin as direct materials in the manufacturing
 process, and we occasionally add tungsten and tantalum. We do not use gold, tin, tungsten
 or tantalum in our testing services.

(2) For our electronic manufacturing services,
 typical materials and components which we utilize include solder (tin based), electrolytic
 capacitors (tantalum bearing), integrated circuits (gold wire) and high temperature wires
 (tungsten). Gold, tin, tungsten and tantalum are essential to our electronic manufacturing
 services.

All packaging, materials design and production and electronic manufacturing services we provide contain one or more of the conflict minerals: gold, tin, tungsten or tantalum.

**Reasonable Country of Origin Inquiry** 

We conducted a reasonable country of origin inquiry ("RCOI") to determine whether 3TG have originated in the Democratic Republic of the Congo ("DRC") or its adjoining countries (the "Covered Countries"), or are from recycled or scrap sources. Our RCOI included to:

(1) Identify our suppliers who provided us
 with materials containing 3TG and then use the Conflict Minerals Reporting Template ("CMRT")
 developed by the Responsible Minerals Initiative ("RMI") to facilitate transparency
 of the supply chain regarding 3TG sourced from the smelters and refiners. We identified 523
 suppliers in the reporting period and used the CMRTs to identify the Smelters or Refiners
 ("SoRs") of 3TG and their origin countries.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(i) For
 our packaging and materials design and production services, a total of 176 <sup>1</sup> suppliers provided us with materials
 containing 3TG.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(ii) For our electronic manufacturing
 services, we selected 347 suppliers from a total of 4,049 suppliers who provided us with
 materials containing metals by the following assessment criteria: (1) the suppliers with
 purchase amounts greater than US$0.46 million in 2025, which in aggregate accounted for more
 than 85% of our total purchase amount.

(2) Confirm with our suppliers that they are
 in compliance with our conflict minerals policy and their covenant to disclose the source
 information of the smelters and refiners under the representation letters.

Based on our RCOI results, we have reason to believe that the conflict minerals in our products may have originated in the Covered Countries and conflict-affected and high-risk areas ("CAHRA") or may not come from recycled or scrap sources. Therefore, we conducted due diligence on the source and chain of custody of the conflict minerals in our products.

Below are the results of our RCOI.

_____________________

<sup>1</sup> Includes one of our supplier who did not provide a complete CMRT. We have no longer maintained an active business relationship with this supplier since April 2025.

**Packaging and Materials Design and Production Services** 

***Gold***

During 2025, we purchased gold for our packaging and materials design and production services from a total of 85 suppliers. None of these suppliers are SoRs, and all these suppliers purchased gold from SoRs or from third parties. Based on the CMRTs we collected, we identified a total of 96 SoRs from which we indirectly purchased gold in 2025 for our packaging and materials design and production services. 84<sup>2</sup> of our gold suppliers for our packaging and materials design and production services responded to our request to identify the SoRs from which they sourced gold during 2025, representing 99% of our total gold expenditure.

Based on an inspection of the list available at https://www.responsiblemineralsinitiative.org conducted on December 31, 2025, all 96 SoRs from which we indirectly purchased gold in 2025 for our packaging and materials design and production services are participants in at least one of (i) the Responsible Minerals Assurance Process ("RMAP") operated by RMI, (ii) the Gold Industry—London Bullion Market Association ("LBMA"), or (iii) the Gold Industry— Responsible Jewellery Council ("RJC").

***Tin***

During 2025, we purchased tin for our packaging and materials design and production services from a total of 90 suppliers. None of these suppliers are SoRs, and all these suppliers purchased tin from SoRs or from other third parties. Based on the CMRTs we collected, we identified a total of 59 SoRs from which we indirectly purchased tin in 2025 for our packaging and materials design and production services. All 90 of our tin suppliers for our packaging and materials design and production services responded to our request to identify the SoRs from which they sourced tin during 2025, representing 100% of our total tin expenditure.

Based on an inspection of the list available at https://www.responsiblemineralsinitiative.org conducted on December 31, 2025, all 59 SoRs from which we indirectly purchased tin in 2025 for our packaging and materials design and production services are participants in the RMAP operated by RMI.

_____________________

<sup>2</sup> Includes one gold supplier who did not provide a complete CMRT. We have ceased all transactions with this supplier since April 2025.

***Tungsten***

During 2025, we purchased tungsten for our packaging and materials design and production services from a total of 20 suppliers. None of these suppliers are SoRs, and all these suppliers purchased tungsten from SoRs or from other third parties. Based on the CMRTs we collected, we identified 31 SoRs from which we indirectly purchased tungsten for our packaging and materials design and production services in 2025. All 20 of our tungsten suppliers for our packaging and materials design and production services responded to our request to identify the SoRs from which they sourced tungsten during 2025, representing 100% of our total tungsten expenditure.

Based on an inspection of the list available at https://www.responsiblemineralsinitiative.org conducted on December 31, 2025, all 31 SoRs from which we indirectly purchased tungsten for our packaging and materials design and production services in 2025 are participants in the RMAP operated by RMI or participants in the Tungsten Industry—Conflict Minerals Council ("TI-CMC").

***Tantalum***

During 2025, we purchased tantalum for our packaging and materials design and production services from 7 suppliers. None of these suppliers are SoRs, and all these suppliers purchased tantalum from SoRs or from other third parties. Based on the CMRTs we collected, we identified a total of 30 SoRs from which we indirectly purchased tantalum in 2025 for our packaging and materials design and production services. All 7 of our tantalum suppliers for our packaging and materials design and production services responded to our request to identify the SoRs from which they sourced tantalum during 2025, representing 100% of our total tantalum expenditure.

Based on an inspection of the list available at https://www.responsiblemineralsinitiative.org conducted on December 31, 2025, all 30 of the SoRs from which we indirectly purchased tantalum in 2025 for our packaging and materials design and production services are participants in the RMAP operated by RMI.

**Electronic Manufacturing Services**

During 2025, we selected 347 suppliers from a total of 4,049 suppliers for our electronic manufacturing services for the purpose of identifying SoRs. The 347 suppliers were selected based on the assessment criteria mentioned in the section entitled RCOI.

***Gold***

Among the 347 selected suppliers, we purchased gold for our electronic manufacturing services from 270 suppliers in 2025. None of these suppliers are SoRs, and all these suppliers purchased gold from SoRs or from other third parties. Based on the CMRTs we collected, we identified 97 SoRs from which we indirectly purchased gold for our electronic manufacturing services. All 270 gold suppliers responded to our request to identify the SoRs from which they sourced gold during 2025.

Based on an inspection of the list available at https://www.responsiblemineralsinitiative.org conducted on December 31, 2025, all 97 SoRs from which we indirectly purchased gold for our electronic manufacturing services in 2025 are participants in at least one of (i) the RMAP operated by RMI, (ii) the LBMA, or (iii) the RJC.

***Tin***

Among the 347 selected suppliers, we purchased tin for our electronic manufacturing services from 298 suppliers in 2025. None of these suppliers are SoRs, and all these suppliers purchased tin from SoRs or from other third parties. Based on the CMRTs we collected, we identified 63 SoRs from which we indirectly purchased tin for our electronic manufacturing services. All 298 tin suppliers responded to our request to identify the SoRs from which they sourced tin during 2025.

Based on an inspection of the list available at https://www.responsiblemineralsinitiative.org conducted on December 31, 2025, all 63 SoRs from which we indirectly purchased tin for our electronic manufacturing services in 2025 are participants in the RMAP operated by RMI.

***Tungsten***

Among the 347 selected suppliers, we purchased tungsten for our electronic manufacturing services from 153 suppliers in 2025. None of these suppliers are SoRs, and all these suppliers purchased tungsten from SoRs or from other third parties. Based on the CMRTs we collected, we identified 37 SoRs from which we indirectly purchased tungsten for our electronic manufacturing services. All 153 tungsten suppliers responded to our request to identify the SoRs from which they sourced tungsten during 2025.

Based on an inspection of the list available at https://www.responsiblemineralsinitiative.org conducted on December 31, 2025, all 37 SoRs from which we indirectly purchased tungsten for our electronic manufacturing services in 2025 are participants in either the RMAP operated by RMI or the TI-CMC program.

***Tantalum***

Among the 347 selected suppliers, we purchased tantalum for our electronic manufacturing services from 119 suppliers in 2025. None of these suppliers are SoRs, and all these suppliers purchased tantalum from SoRs or from other third parties. Based on the CMRTs we collected, we identified 44 SoRs from which we indirectly purchased tantalum for our electronic manufacturing services. All 119 tantalum suppliers responded to our request to identify the SoRs from which they sourced tantalum during 2025.

Based on an inspection of the list available at https://www.responsiblemineralsinitiative.org conducted on December 31, 2025, all 44 SoRs from which we indirectly purchased tantalum for our electronic manufacturing services in 2025 are participants in the RMAP operated by RMI.

**Part I. Due Diligence**

**Design of Due Diligence**

ASEH designed its due diligence measures to conform to the Organisation for Economic Co-operation and Development Due Diligence Guidance for Responsible Supply Chains of Minerals from Conflict-Affected and High-Risk Areas: Third Edition (the "OECD Guidance"), including the related supplements on gold, tin, tantalum and tungsten.

**Due Diligence Measures Performed**

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| | |
|:---|:---|
| **OECD Step 1** | **Establish strong company management systems** |
| A. Adopt and clearly communicate to suppliers and public | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The *ASE Technology Holding Co., Ltd. Corporate Policy for Sourcing Conflict Minerals* is posted on our website (and attached here as Annex A) to address our commitment to exercise due diligence in accordance with the OECD Guidance.<br>Additionally, we distribute our conflict minerals policy to each of our suppliers of conflict minerals who must agree that the policy will be complied with and require each supplier to certify they understand our conflict minerals policy and will comply with its covenants.  |
| B. Structure internal management to support due diligence | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Our conflict minerals management team is a comprehensive cross-functional team under the direction of ASEH's Corporate Sustainability Committee which is chaired by our Principal Executive Officer.<br>The team is responsible for implementing the conflict minerals compliance mechanism, including planning, analysis, tracking, monitoring, and communication and reporting for the business wide initiative.  |
| C. Establish a system of controls and transparency over the mineral supply chain | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Conflict minerals procedures are documented in our specifications system and managed by our conflict minerals management team. The bills-of-materials required for different customer products across all manufacturing operations are controlled by our manufacturing execution system software.<br>The primary method for gathering conflict mineral data is through the deployment and gathering of Responsible Minerals Initiative ("RMI"), which is developed by Conflict Minerals Reporting Template ("CMRT"). We store such data and maintain other related records for a minimum of five years in a comprehensive filing system.<br>Aligned with industry practice, we utilize a conflict minerals data tool to manage a large number of suppliers' CMRTs, auto-validates smelter status with updated RMI smelter list and aggregates smelter reporting for our customers.<br>|

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| | |
|:---|:---|
| D. Strengthen company engagement with suppliers | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;ASEH's subsidiaries communicate our conflict minerals policy and requirements to relevant suppliers through our website. In addition to the website, ASEH's subsidiaries are building person-to-person links between employees and suppliers to improve the quality and consistency of supplier communications.<br>ASEH's subsidiaries hold several supplier seminars/workshops at multiple manufacturing facilities to announce new requirements, and provide trainings to suppliers to enable them to better understand how to improve their conflict minerals monitoring mechanism, including smelter data quality.<br>We include conflict minerals terms in our subsidiaries' *Purchase Orders* pursuant to which our suppliers agree (i) to use industry standard efforts to ensure 3TG materials covered by the purchase order and sourced from mines in the DRC or the Covered Countries do not directly or indirectly finance illegal militia in the above-mentioned area, (ii) to promptly notify us if any materials covered by the purchase order do contain conflict minerals that are not DRC Conflict Free and to provide a report on the mine and/or smelter of origin of the conflict minerals and the related chain of custody and (iii) to only supply us with materials that contain DRC Conflict Free minerals sourced from certified DRC Conflict Free smelter and refinery programs.  |
| E. Establish grievance mechanism | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;ASEH encourages suppliers and employees to have open and honest dialog on issues of mutual interest.<br>We provide the separate email addresses for our three subgroups (<u>ASE_CM@aseglobal.com</u>, <u>petition@spil.com.tw,</u> and <u>conflict_minerals@usiglobal.com</u>) for general surveys, inquiries and grievances regarding our conflict minerals program. Our conflict mineral mechanism can also be found on our website at https://www.aseglobal.com/csr/responsible-procurement/conflict-minerals-compliance<br>|

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| | |
|:---|:---|
| **OECD Step 2** | **Identify and assess risk in the supply chain** |
| A. Identify risks in the supply chain | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Our process for identifying conflict minerals risk in the supply chain is as follows:<br>(a) Identify all our suppliers who provide direct materials and components which may contain conflict minerals being necessary to the functionality or production of our products.<br>(b) Conduct an annual suppliers' survey through the CMRTs to identify the SoRs and the origin countries of conflict minerals.<br>(c) Review each received CMRT based on our internal standard procedure to check the quality such as the suppliers' conflict minerals policies, suppliers' data collection from next tier suppliers, and SoRs identification and disclosure.<br>(d) For our electronic manufacturing services, due to the complexity of the supply chain, we:<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;· assess the value of the annual purchase volume of all conflict minerals.<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;· prioritize conflict mineral sources by dollar volume to leverage impact from available analytical resources. |
| B. Assess risks of adverse impacts | (a) Assess data gathered on the CMRTs to identify potential inconsistencies or "red flags."<br>(b) Define annual supplier risk criteria.<br>(c) Carry out on-site or document audit for suppliers determined as at-risk suppliers according to the risk criteria.<br>(d) Follow up as appropriate to resolve items of concern. |
| **OECD Step 3** | **Design and implement a strategy to respond to identified risks** |
| A. Report finding to designated senior management | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Periodic reviews are held and status are reported to our Chief Operating Officer ("COO"), Chief Financial Officer ("CFO"), and Chief Administrator Officer ("CAO") who are also our Corporate Sustainability Committee members and senior management in order for them to be aware of current conflict minerals compliance status. |
| B. Devise and adopt a risk management plan | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Our risk management plan includes tracking SoRs information to check if they may be from DRC, the Covered Countries, or CAHRA, or not from scrap or recycled sources.<br>We compare supplier smelter data to RMI RCOI data to identify actual smelter origins.<br>Additionally, ASEH's subsidiaries developed their own conflict minerals audit checklists to implement an on-site or document audit process. ASEH's subsidiaries are required to validate suppliers' mechanisms related to important aspects of conflict minerals management.<br>Finally, we continue to work with non-compliant suppliers to obtain RMAP certification, or other independence third party audit program. Suppliers unwilling or incapable of achieving such certification are considered to be replaced by compliant suppliers.<br>|

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| | |
|:---|:---|
| C. Implement the risk management plan, monitor and track performance of risk mitigation efforts and report back to designated senior management | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;We use CMRTs and the up-to-date RMAP compliant smelter lists to monitor and track our suppliers and their SoRs information. For the compliance year 2025, our packaging and materials design and production services received CMRTs from 99%<sup>3</sup> of our conflict minerals suppliers surveyed and electronic manufacturing services received CMRTs from 100% of our conflict minerals suppliers surveyed.<br>We request our suppliers to provide an updated response of their CMRTs if there is any change. We maintain a regular communication channel with our senior management as abovementioned.  |
| D. Undertake additional fact and risk assessments for risks requiring mitigation, or after a change of circumstances | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;We have begun supplier audits to assess the accuracy of data and statements made by larger suppliers. This program will be broadened over time.<br>As a member of both the RBA and RMI since 2015, we leverage Reasonable Country of Origin Inquiry (RCOI) data to gain insight into mineral sourcing practices. This data is linked to smelters and refiners (SoRs) that are validated through the Responsible Minerals Assurance Process (RMAP), providing visibility into countries of mineral origin. These insights enhance our due diligence practices and enable us to proactively manage and validate the sourcing information of our suppliers' SoRs.  |
| **OECD Step 4** | **Carry out independent third-party audit of supply chain due diligence at identified points in the supply chain** |
|  | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;For the compliance year 2025, ASEH has undertaken an Independent Private Sector Audit ("IPSA") of our Conflict Minerals Report in compliance with the requirements set forth in the SEC Conflict Minerals Final Rule and subsequent SEC Guidance.<br>As a member of RMI, we leverage the due diligence conducted on smelters by the RMAP which uses independent third-party auditors to audit the source of the conflict minerals used by smelters.  |
| **OECD Step 5** | **Report on supply chain due diligence.** |
|  | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;We report annually on our supply chain due diligence activities including the conflict minerals program in our annual sustainability report and we file a Form SD and Conflict Minerals Report ("CMR") for the compliance year 2025 with the Securities and Exchange Commission of the United States on or before the May 31, 2026 deadline in compliance with the SEC Conflict Minerals Final Rule and subsequent guidance. This information is publicly available on our website at <br> https://www.aseglobal.com/csr/responsible-procurement/conflict-minerals-compliance |

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<sup>3</sup> Excludes one supplier with no transactions since April 2025.

**Part II. Due Diligence Determination and Product Declaration** 

**<u>Product Declaration</u>**

Our RCOI results did not provide us a sufficient level of confidence to enable us to report that all our products are conflict-free. Pursuant to Rule 13p-1 under the Securities Exchange Act of 1934, we therefore conducted additional due diligence on the source and chain of custody of the necessary conflict minerals in our products in order to obtain reasonable and reliable evidence that the gold, tin, tungsten or tantalum used by us in 2025 either (i) did not directly or indirectly benefit violent organizations in the Democratic Republic of the Congo or adjacent regions or CAHRA or (ii) came from recycled or scrap sources.

Based on our RCOI analysis and due diligence measures described in this report, we made the following product determinations.

Packaging and Materials Design and Production Services:

Based on the CMRTs we received, all identified SoRs used in our packaging and materials design and production services products were certified by RMI or were in the process of receiving RMI certificates in 2025. We reasonably believe that such SoRs are DRC Conflict-Free.

Electronic Manufacturing Services:

Given the large number of suppliers for our electronic manufacturing services, we developed a sampling program to select material suppliers for the purpose of identifying SoRs. We believe that our due diligence performed based on the sampling program is sufficient and appropriate to provide a reasonable basis for our determination. Based on the CMRTs we received, all identified SoRs used in our electronic manufacturing services products were certified by RMI or were in the process of receiving RMI certificates in 2025. Therefore, we reasonably believe that such SoRs are DRC Conflict-Free.

**<u>Glossary</u>**

A glossary of abbreviations and terms is included in Annex C.

**<u>Facilities used to Process Conflict Minerals</u>**

A list of smelters and refiners that sourced conflict minerals utilized in our services is provided in Annex D.

**<u>Conflict Minerals Country of Origin</u>**

A list of countries where conflict minerals were mined or extracted is listed in Annex E. These minerals may have been smelted or refined in the country of extraction or in facilities around the world.

**Part III – Continuous Improvements**

&nbsp;&nbsp;&nbsp;&nbsp;▪ Management
 Mechanism

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;▪ Be
 aware of regulatory changes (e.g., RMI and OECD guidance), and adjust our policy in a timely
 manner if necessary.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;▪ Improve
 our conflict minerals validation process when accepting new suppliers.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;▪ Work
 with our new and current suppliers to confirm that they understand and comply with ASEH's
 conflict minerals policy and requirements.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;▪ Establish
 our conflict minerals data collection system with advanced management and analytical functionalities
 in the near future.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;▪ Strengthen
 education and trainings for our manufacturing facilities and relevant employees.

&nbsp;&nbsp;&nbsp;&nbsp;▪ Due
 Diligence

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;▪ Work
 with our suppliers to improve the suppliers' data accuracy and completeness and ensure
 that the smelters and refiners they source conflict minerals from in our supply chain are
 actively participating or progressing toward RMAP listing or other independence third party
 audit programs.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;▪ In
 addition to gold, tin, tantalum and tungsten, we have started to gradually add cobalt, mica
 and more minerals from CAHRAs to the scope of investigation to check if they comply with
 the RMI's standards.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;▪ Assess
 suppliers' due diligence processes through on-site audits so as to assist suppliers
 to build up and improve their internal management systems.

&nbsp;&nbsp;&nbsp;&nbsp;▪ Communication

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;▪ Annually
 hold supplier seminars to assist suppliers with their conflict minerals programs.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;▪ Actively
 participate in the RMI and other key industry association and stakeholders' responsible
 sourcing initiatives.

**Part IV – Independent Private Sector Audit** 

We obtained an independent private sector audit by KPMG. The independent accountant's report is set forth in Annex B.

**Annex A –ASE Technology Holding Co., Ltd. Corporate Policy for Sourcing Conflict Minerals**

The mining and distribution of "conflict minerals"<sup>4</sup> originating from the Democratic Republic of the Congo (the "DRC") are sometimes controlled by violent organizations in order to fund conflict in that country and adjacent regions. Our industry supply chains are inadvertently subject to metals derived from these conflict minerals which can be introduced through the metals we use such as gold, tin, tantalum and tungsten. ASE Technology Holding Co., Ltd. and its subsidiaries (collectively, "ASE Technology Holding ") is dedicated to the elimination of these conflict minerals in our supply chain and to using only responsibly sourced "conflict-free minerals"<sup>5</sup>. We expect our suppliers to source conflict-free minerals from smelters or refineries that have been certified by an independent third party audit program to fulfill our objective. It is also our objective to support the continued use of conflict-free minerals from the DRC and its adjacent regions such that responsible mining<sup>6</sup> is not diminished. We exercise due diligence with our suppliers on the origin and supply chain of minerals in accordance with the "OECD Due Diligence for Responsible Supply Chains of Minerals from Conflict-Affected and High-Risk Areas" to establish conflict minerals management mechanism.

To protect the human rights, health and environment for workers in the material production areas, we commit to widening the scope of investigation and information disclosure; in addition to gold, tin, tantalum and tungsten, more minerals (such as cobalt and mica) will be included gradually from conflict-affected and high-risk areas ("CAHRAs") in accordance with the Responsible Minerals Initiative ("RMI") standards. ASE Technology Holding requires suppliers must support this policy by the following guidelines and widen their scope of investigations and disclosures to continuously strengthen our responsible sourcing programs.

&nbsp;&nbsp;&nbsp;&nbsp;(a) Being diligent in their assessment
 and validation of their supply chains to ensure ASE Technology Holding's objectives
 of a transparent supply chain and conflict-free purchases are inputs to the services and
 products we produce.

&nbsp;&nbsp;&nbsp;&nbsp;(b) Be in compliance at all times with
 all regional and international regulations for conflict minerals.

&nbsp;&nbsp;&nbsp;&nbsp;(c) Be in compliance at all times with
 industry standards for the sourcing and reporting of conflict minerals.

&nbsp;&nbsp;&nbsp;&nbsp;(d) Being diligent and accurate in their
 formal assurances of conflict-free minerals provided to us.

_____________________

<sup>4</sup> "Conflict minerals" are columbite-tantalite (coltan), cassiterite, gold, wolframite, or their derivatives as defined in the Dodd-Frank Act section 1502 and SEC Rule 13p-1 under the Securities Exchange Act of 1934.

<sup>5</sup> "Conflict-free minerals" are conflict minerals that through their distribution directly or indirectly do not benefit violent organizations in the Democratic Republic of the Congo and its adjacent regions.

<sup>6</sup> "Responsible mining" is taking the social and environmental responsibility for the mining procedure.

**Annex B –Independent Accountants' Report**

Independent Accountants' Report

To the Board of Directors and Shareholders of ASE Technology Holding Co., Ltd.:

We have examined:

&nbsp;&nbsp;&nbsp;&nbsp;▪ whether
 the design of ASE Technology Holding Co., Ltd. (the "Company") due diligence
 framework as set forth in the section titled "Part I. Due Diligence" of the Company's
 Conflict Minerals Report for the reporting period from January 1 to December 31, 2025 (the
 "Conflict Minerals Report"), is in conformity, in all material respects, with
 the criteria set forth in the Organisation of Economic Co-operation and Development Due Diligence
 Guidance for Responsible Supply Chains of Minerals from Conflict-Affected and High-Risk Areas,
 Third Edition 2016 ("OECD Due Diligence Guidance"), and

&nbsp;&nbsp;&nbsp;&nbsp;▪ whether
 the Company's description of the due diligence measures it performed, as set forth
 in the section titled "Part I. Due Diligence" of the Company's Conflict
 Minerals Report, is consistent, in all material respects, with the due diligence process
 that the Company undertook.

Management from the Company is responsible for the design of the Company's due diligence framework and the description of the Company's due diligence measures set forth in the Conflict Minerals Report, and performance of the due diligence measures. Our responsibility is to express an opinion on the design of the Company's due diligence framework and on the description of the due diligence measures the Company performed, based on our examination.

Our examination was conducted in accordance with attestation standards established by the American Institute of Certified Public Accountants and the standards applicable to attestation engagements contained in Government Auditing Standards, issued by the Comptroller General of the United States. Those standards require that we plan and perform the examination to obtain reasonable assurance about whether the design of the Company's due diligence framework is in conformity with the OECD Due Diligence Guidance and whether the description of the due diligence measures the Company performed is consistent with the due diligence process that the Company undertook, in all material respects. An examination involves performing procedures to obtain evidence about the design of the Company's due diligence framework and the description of the due diligence measures the Company performed. The nature, timing and extent of the procedures selected depend on our professional judgment, including an assessment of the risks of material misstatement of the design of the Company's due diligence framework and the description of the due diligence measures the Company performed. We believe that the evidence we obtained is sufficient and appropriate to provide a reasonable basis for our opinion.

Our examination was not conducted for the purpose of evaluating:

&nbsp;&nbsp;&nbsp;&nbsp;▪ The
 consistency of the due diligence measures that the Company performed with either the design
 of the Company's due diligence framework or the OECD Due Diligence Guidance;

&nbsp;&nbsp;&nbsp;&nbsp;▪ The
 completeness of the Company's description of the due diligence measures performed;

&nbsp;&nbsp;&nbsp;&nbsp;▪ The
 suitability of the design or operating effectiveness of the Company's due diligence
 process;

&nbsp;&nbsp;&nbsp;&nbsp;▪ Whether
 a third party can determine from the Conflict Minerals Report if the due diligence measures
 the Company performed are consistent with the OECD Due Diligence Guidance;

&nbsp;&nbsp;&nbsp;&nbsp;▪ The
 Company's reasonable country of origin inquiry (RCOI), including the suitability of
 the design of the RCOI, its operating effectiveness, or the results thereof; or

&nbsp;&nbsp;&nbsp;&nbsp;▪ The
 Company's conclusions about the source or chain of custody of its conflict minerals,
 those products subject to due diligence, or the DRC Conflict Free status of its products.

Accordingly, we do not express an opinion or any other form of assurance on the aforementioned matters or any other matters included in any section of the Conflict Minerals Report other than the section titled "Part I. Due Diligence."

In our opinion,

&nbsp;&nbsp;&nbsp;&nbsp;▪ the
 design of the Company's due diligence framework for the reporting period from January
 1 to December 31, 2025, as set forth in the Company's Conflict Minerals Report, is
 in conformity, in all material respects, with the OECD Due Diligence Guidance, and

&nbsp;&nbsp;&nbsp;&nbsp;▪ the
 Company's description of the due diligence measures it performed for the reporting
 period from January 1 to December 31, 2025 as set forth in its Conflict Minerals Report,
 is consistent, in all material respects, with the due diligence process that the Company
 undertook.

/s/ KPMG

Taipei, Taiwan (the Republic of China)

May 29, 2026

**Annex C – Glossary** 

---

| | |
|:---|:---|
| **Term** | **Explanation** |
| ASEH | ASE Technology Holding Co., Ltd. |
| CMRT | Conflict Minerals Reporting Template |
| DRC Conflict-Free | DRC Conflict-free minerals are conflict minerals that, through their mining or distribution, directly or indirectly, do not benefit violent organizations in the Democratic Republic of the Congo and its adjacent regions |
| LBMA | London Bullion Market Association |
| OECD | Organisation for Economic Co-operation and Development |
| RBA | Responsible Business Alliance |
| RCOI | Reasonable Country of Origin Inquiry |
| RJC | Responsible Jewellery Council |
| RMAP | Responsible Minerals Assurance Process |
| RMI | Responsible Minerals Initiative |
| SoRs | Smelters or Refiners |
| TI-CMC | Tungsten Industry—Conflict Minerals Council |
| CAHRA | Conflict-affected and high-risk areas |

---

**Annex D – Smelter List**

---

| | | | |
|:---|:---|:---|:---|
| **Metal** | **Smelter or Refiner Name** | **Smelter Identification Number** | **Smelter Country** |
| Gold | Mitsui Mining and Smelting Co., Ltd. | CID001193 | JAPAN |
| Gold | Mitsubishi Materials Corporation | CID001188 | JAPAN |
| Gold | Metalor Technologies S.A. | CID001153 | SWITZERLAND |
| Gold | Asahi Refining Canada Ltd. | CID000924 | CANADA |
| Gold | Western Australian Mint (T/a The Perth Mint) | CID002030 | AUSTRALIA |
| Gold | Tanaka Kikinzoku Kogyo K.K. | CID001875 | JAPAN |
| Gold | Heraeus Metals Hong Kong Ltd. | CID000707 | CHINA |
| Gold | LS MnM Inc. | CID001078 | KOREA, REPUBLIC OF |
| Gold | Matsuda Sangyo Co., Ltd. | CID001119 | JAPAN |
| Gold | Metalor Technologies (Hong Kong) Ltd. | CID001149 | CHINA |
| Gold | Sumitomo Metal Mining Co., Ltd. | CID001798 | JAPAN |
| Gold | Argor-Heraeus S.A. | CID000077 | SWITZERLAND |
| Gold | Asahi Pretec Corp. | CID000082 | JAPAN |
| Gold | Ishifuku Metal Industry Co., Ltd. | CID000807 | JAPAN |
| Gold | JX Nippon Mining & Metals Co., Ltd. | CID000937 | JAPAN |
| Gold | Metalor USA Refining Corporation | CID001157 | UNITED STATES OF AMERICA |
| Gold | CCR Refinery - Glencore Canada Corporation | CID000185 | CANADA |
| Gold | Ohura Precious Metal Industry Co., Ltd. | CID001325 | JAPAN |
| Gold | Nihon Material Co., Ltd. | CID001259 | JAPAN |
| Gold | Tokuriki Honten Co., Ltd. | CID001938 | JAPAN |
| Gold | Royal Canadian Mint | CID001534 | CANADA |
| Gold | Asahi Refining USA Inc. | CID000920 | UNITED STATES OF AMERICA |
| Gold | Aurubis AG | CID000113 | GERMANY |
| Gold | Umicore S.A. Business Unit Precious Metals Refining | CID001980 | BELGIUM |
| Gold | United Precious Metal Refining, Inc. | CID001993 | UNITED STATES OF AMERICA |
| Gold | Aida Chemical Industries Co., Ltd. | CID000019 | JAPAN |
| Gold | Agosi AG | CID000035 | GERMANY |
| Gold | C. Hafner GmbH + Co. KG | CID000176 | GERMANY |
| Gold | Chimet S.p.A. | CID000233 | ITALY |

---

---

| | | | |
|:---|:---|:---|:---|
| Gold | Dowa | CID000401 | JAPAN |
| Gold | Heimerle + Meule GmbH | CID000694 | GERMANY |
| Gold | Heraeus Germany GmbH Co. KG | CID000711 | GERMANY |
| Gold | Kojima Chemicals Co., Ltd. | CID000981 | JAPAN |
| Gold | Materion | CID001113 | UNITED STATES OF AMERICA |
| Gold | Metalor Technologies (Suzhou) Ltd. | CID001147 | CHINA |
| Gold | Metalor Technologies (Singapore) Pte., Ltd. | CID001152 | SINGAPORE |
| Gold | MKS PAMP SA | CID001352 | SWITZERLAND |
| Gold | SEMPSA Joyeria Plateria S.A. | CID001585 | SPAIN |
| Gold | Solar Applied Materials Technology Corp. | CID001761 | TAIWAN, PROVINCE OF CHINA |
| Gold | SAFINA A.S. | CID002290 | CZECHIA |
| Gold | WIELAND Edelmetalle GmbH | CID002778 | GERMANY |
| Gold | Eco-System Recycling Co., Ltd. East Plant | CID000425 | JAPAN |
| Gold | Jiangxi Copper Co., Ltd. | CID000855 | CHINA |
| Gold | Asaka Riken Co., Ltd. | CID000090 | JAPAN |
| Gold | Yokohama Metal Co., Ltd. | CID002129 | JAPAN |
| Gold | Metalurgica Met-Mex Penoles S.A. De C.V. | CID001161 | MEXICO |
| Gold | AngloGold Ashanti Corrego do Sitio Mineracao | CID000058 | BRAZIL |
| Gold | Istanbul Gold Refinery | CID000814 | TURKEY |
| Gold | Boliden Ronnskar | CID000157 | SWEDEN |
| Gold | Shandong Zhaojin Gold & Silver Refinery Co., Ltd. | CID001622 | CHINA |
| Gold | Shandong Gold Smelting Co., Ltd. | CID001916 | CHINA |
| Gold | Advanced Chemical Company | CID000015 | UNITED STATES OF AMERICA |
| Gold | Almalyk Mining and Metallurgical Complex (AMMC) | CID000041 | UZBEKISTAN |
| Gold | Bangko Sentral ng Pilipinas (Central Bank of the Philippines) | CID000128 | PHILIPPINES |
| Gold | Chugai Mining | CID000264 | JAPAN |
| Gold | DSC (Do Sung Corporation) | CID000359 | KOREA, REPUBLIC OF |
| Gold | LT Metal Ltd. | CID000689 | KOREA, REPUBLIC OF |
| Gold | Inner Mongolia Qiankun Gold and Silver Refinery Share Co., Ltd. | CID000801 | CHINA |
| Gold | Japan Mint | CID000823 | JAPAN |

---

---

| | | | |
|:---|:---|:---|:---|
| Gold | Kazzinc | CID000957 | KAZAKHSTAN |
| Gold | Kennecott Utah Copper LLC | CID000969 | UNITED STATES OF AMERICA |
| Gold | Nadir Metal Rafineri San. Ve Tic. A.S. | CID001220 | TURKEY |
| Gold | Navoi Mining and Metallurgical Combinat | CID001236 | UZBEKISTAN |
| Gold | PT Aneka Tambang (Persero) Tbk | CID001397 | INDONESIA |
| Gold | PX Precinox S.A. | CID001498 | SWITZERLAND |
| Gold | Rand Refinery (Pty) Ltd. | CID001512 | SOUTH AFRICA |
| Gold | Sichuan Tianze Precious Metals Co., Ltd. | CID001736 | CHINA |
| Gold | Valcambi S.A. | CID002003 | SWITZERLAND |
| Gold | Yamakin Co., Ltd. | CID002100 | JAPAN |
| Gold | MMTC-PAMP India Pvt., Ltd. | CID002509 | INDIA |
| Gold | KGHM Polska Miedz Spolka Akcyjna | CID002511 | POLAND |
| Gold | T.C.A S.p.A | CID002580 | ITALY |
| Gold | REMONDIS PMR B.V. | CID002582 | NETHERLANDS |
| Gold | Korea Zinc Co., Ltd. | CID002605 | KOREA, REPUBLIC OF |
| Gold | TOO Tau-Ken-Altyn | CID002615 | KAZAKHSTAN |
| Gold | Abington Reldan Metals, LLC | CID002708 | UNITED STATES OF AMERICA |
| Gold | Italpreziosi | CID002765 | ITALY |
| Gold | SungEel HiMetal Co., Ltd. | CID002918 | KOREA, REPUBLIC OF |
| Gold | Planta Recuperadora de Metales SpA | CID002919 | CHILE |
| Gold | NH Recytech Company | CID003189 | KOREA, REPUBLIC OF |
| Gold | Eco-System Recycling Co., Ltd. North Plant | CID003424 | JAPAN |
| Gold | Eco-System Recycling Co., Ltd. West Plant | CID003425 | JAPAN |
| Gold | Metal Concentrators SA (Pty) Ltd. | CID003575 | SOUTH AFRICA |
| Gold | Gold by Gold Colombia | CID003641 | COLOMBIA |
| Gold | Coimpa Industrial LTDA | CID004010 | BRAZIL |
| Gold | Zhongyuan Gold Smelter of Zhongjin Gold Corporation | CID002224 | CHINA |
| Gold | Ogussa Osterreichische Gold- und Silber-Scheideanstalt GmbH | CID002779 | AUSTRIA |
| Gold | Bangalore Refinery | CID002863 | INDIA |
| Gold | GG Refinery Ltd. | CID004506 | TANZANIA, UNITED REPUBLIC OF |

---

---

| | | | |
|:---|:---|:---|:---|
| Gold | Elite Industech Co., Ltd. | CID004755 | TAIWAN, PROVINCE OF CHINA |
| Gold | Impala Platinum - Rustenburg Smelter | CID004610 | SOUTH AFRICA |
| Gold | Impala Platinum - Base Metal Refinery (BMR) | CID004604 | SOUTH AFRICA |
| Gold | Impala Platinum - Platinum Metals Refinery (PMR) | CID004714 | SOUTH AFRICA |
| Gold | Minera Titan del Peru SRL (MTP) - Belen Plant | CID005014 | PERU |
| Gold | TITAN COMPANY LIMITED, JEWELLERY DIVISION | CID004491 | INDIA |
| Gold | Gold Refinery of Zijin Mining Group Co., Ltd. | CID002243 | CHINA |
| Tantalum | Taki Chemical Co., Ltd. | CID001869 | JAPAN |
| Tantalum | XIMEI RESOURCES (GUANGDONG) LIMITED | CID000616 | CHINA |
| Tantalum | TANIOBIS GmbH | CID002545 | GERMANY |
| Tantalum | Mitsui Mining and Smelting Co., Ltd. | CID001192 | JAPAN |
| Tantalum | Jiujiang Tanbre Co., Ltd. | CID000917 | CHINA |
| Tantalum | Ningxia Orient Tantalum Industry Co., Ltd. | CID001277 | CHINA |
| Tantalum | Global Advanced Metals Boyertown | CID002557 | UNITED STATES OF AMERICA |
| Tantalum | F&X Electro-Materials Ltd. | CID000460 | CHINA |
| Tantalum | Materion Newton Inc. | CID002548 | UNITED STATES OF AMERICA |
| Tantalum | Global Advanced Metals Aizu | CID002558 | JAPAN |
| Tantalum | JiuJiang JinXin Nonferrous Metals Co., Ltd. | CID000914 | CHINA |
| Tantalum | TANIOBIS Japan Co., Ltd. | CID002549 | JAPAN |
| Tantalum | TANIOBIS Co., Ltd. | CID002544 | THAILAND |
| Tantalum | TANIOBIS Smelting GmbH & Co. KG | CID002550 | GERMANY |
| Tantalum | D Block Metals, LLC | CID002504 | UNITED STATES OF AMERICA |
| Tantalum | Ulba Metallurgical Plant JSC | CID001969 | KAZAKHSTAN |
| Tantalum | Metallurgical Products India Pvt., Ltd. | CID001163 | INDIA |
| Tantalum | FIR Metals & Resource Ltd. | CID002505 | CHINA |
| Tantalum | Mineracao Taboca S.A. | CID001175 | BRAZIL |
| Tantalum | Jiujiang Zhongao Tantalum & Niobium Co., Ltd. | CID002506 | CHINA |
| Tantalum | AMG Brasil | CID001076 | BRAZIL |
| Tantalum | NPM Silmet AS | CID001200 | ESTONIA |
| Tantalum | Yanling Jincheng Tantalum & Niobium Co., Ltd. | CID001522 | CHINA |
| Tantalum | Telex Metals | CID001891 | UNITED STATES OF AMERICA |

---

---

| | | | |
|:---|:---|:---|:---|
| Tantalum | Hengyang King Xing Lifeng New Materials Co., Ltd. | CID002492 | CHINA |
| Tantalum | XinXing HaoRong Electronic Material Co., Ltd. | CID002508 | CHINA |
| Tantalum | Jiangxi Dinghai Tantalum & Niobium Co., Ltd. | CID002512 | CHINA |
| Tantalum | KEMET de Mexico | CID002539 | MEXICO |
| Tantalum | Resind Industria e Comercio Ltda. | CID002707 | BRAZIL |
| Tantalum | Jiangxi Tuohong New Raw Material | CID002842 | CHINA |
| Tantalum | RFH Yancheng Jinye New Material Technology Co., Ltd. | CID003583 | CHINA |
| Tantalum | Guangdong Rising Rare Metals-EO Materials Ltd. | CID000291 | CHINA |
| Tantalum | PowerX Ltd. | CID004054 | RWANDA |
| Tantalum | Ulba Metallurgical Plant JSC | CID001969 | KAZAKHSTAN |
| Tantalum | QuantumClean | CID001508 | UNITED STATES OF AMERICA |
| Tantalum | Changsha South Tantalum Niobium Co., Ltd. | CID000211 | CHINA |
| Tantalum | Jiujiang Janny New Material Co., Ltd. | CID003191 | CHINA |
| Tantalum | Jiangxi Suns Nonferrous Materials Co. Ltd. | CID004813 | CHINA |
| Tantalum | CMT Rare Metal Advanced Materials (Hunan) Co., Ltd. | CID004431 | CHINA |
| Tantalum | XIMEI RESOURCES(GUIZHOU) TECHNOLOGY CO., LTD. | CID003973 | CHINA |
| Tin | Thaisarco | CID001898 | THAILAND |
| Tin | PT Timah Tbk Mentok | CID001482 | INDONESIA |
| Tin | PT Timah Tbk Kundur | CID001477 | INDONESIA |
| Tin | Minsur | CID001182 | PERU |
| Tin | Magnu's Minerais Metais e Ligas Ltda. | CID002468 | BRAZIL |
| Tin | Gejiu Non-Ferrous Metal Processing Co., Ltd. | CID000538 | CHINA |
| Tin | Tin Smelting Branch of Yunnan Tin Co., Ltd. | CID002180 | CHINA |
| Tin | White Solder Metalurgia e Mineracao Ltda. | CID002036 | BRAZIL |
| Tin | Metallic Resources, Inc. | CID001142 | UNITED STATES OF AMERICA |
| Tin | Mineracao Taboca S.A. | CID001173 | BRAZIL |
| Tin | PT Mitra Stania Prima | CID001453 | INDONESIA |
| Tin | Estanho de Rondonia S.A. | CID000448 | BRAZIL |
| Tin | Aurubis Beerse | CID002773 | BELGIUM |
| Tin | China Tin Group Co., Ltd. | CID001070 | CHINA |

---

---

| | | | |
|:---|:---|:---|:---|
| Tin | Rui Da Hung | CID001539 | TAIWAN, PROVINCE OF CHINA |
| Tin | Malaysia Smelting Corporation (MSC) | CID001105 | MALAYSIA |
| Tin | Dowa | CID000402 | JAPAN |
| Tin | Mitsubishi Materials Corporation | CID001191 | JAPAN |
| Tin | Chenzhou Yunxiang Mining and Metallurgy Co., Ltd. | CID000228 | CHINA |
| Tin | Alpha Assembly Solutions Inc | CID000292 | UNITED STATES OF AMERICA |
| Tin | PT Premium Tin Indonesia | CID000313 | INDONESIA |
| Tin | EM Vinto | CID000438 | BOLIVIA (PLURINATIONAL STATE OF) |
| Tin | Fenix Metals | CID000468 | POLAND |
| Tin | Operaciones Metalurgicas S.A. | CID001337 | BOLIVIA (PLURINATIONAL STATE OF) |
| Tin | PT Prima Timah Utama | CID001458 | INDONESIA |
| Tin | PT ATD Makmur Mandiri Jaya | CID002503 | INDONESIA |
| Tin | PT Rajehan Ariq | CID002593 | INDONESIA |
| Tin | PT Cipta Persada Mulia | CID002696 | INDONESIA |
| Tin | Super Ligas | CID002756 | BRAZIL |
| Tin | PT Bangka Prima Tin | CID002776 | INDONESIA |
| Tin | Guangdong Hanhe Non-Ferrous Metal Co., Ltd. | CID003116 | CHINA |
| Tin | Chifeng Dajingzi Tin Industry Co., Ltd. | CID003190 | CHINA |
| Tin | Tin Technology & Refining | CID003325 | UNITED STATES OF AMERICA |
| Tin | PT Mitra Sukses Globalindo | CID003449 | INDONESIA |
| Tin | CRM Synergies | CID003524 | SPAIN |
| Tin | PT Putera Sarana Shakti (PT PSS) | CID003868 | INDONESIA |
| Tin | Malaysia Smelting Corporation Berhad (Port Klang) | CID004434 | MALAYSIA |
| Tin | PT Arsed Indonesia | CID005067 | INDONESIA |
| Tin | O.M. Manufacturing (Thailand) Co., Ltd. | CID001314 | THAILAND |
| Tin | O.M. Manufacturing Philippines, Inc. | CID002517 | PHILIPPINES |
| Tin | Luna Smelter, Ltd. | CID003387 | RWANDA |
| Tin | Resind Industria e Comercio Ltda. | CID002706 | BRAZIL |

---

---

| | | | |
|:---|:---|:---|:---|
| Tin | Aurubis Berango | CID002774 | SPAIN |
| Tin | Yunnan Yunfan Non-ferrous Metals Co., Ltd. | CID003397 | CHINA |
| Tin | Mining Minerals Resources SARL | CID004065 | CONGO, DEMOCRATIC REPUBLIC OF THE |
| Tin | Takehara PVD Materials Plant / PVD Materials Division of MITSUI MINING & SMELTING CO., LTD. | CID004403 | JAPAN |
| Tin | Woodcross Smelting Company Limited | CID004724 | UGANDA |
| Tin | Global Advanced Metals Greenbushes Pty Ltd. | CID004754 | AUSTRALIA |
| Tin | CV Ayi Jaya | CID002570 | INDONESIA |
| Tin | DS Myanmar | CID003831 | MYANMAR |
| Tin | HuiChang Hill Tin Industry Co., Ltd. | CID002844 | CHINA |
| Tin | Soft Metais Ltda. | CID001758 | BRAZIL |
| Tin | Dongguan Best Alloys Co., Ltd. | CID000377 | CHINA |
| Tin | Fabrica Auricchio Industria e Comercio Ltda. | CID003582 | BRAZIL |
| Tin | P Kay Metal, Inc | CID005189 | UNITED STATES OF AMERICA |
| Tin | Feinhutte Halsbrucke GmbH | CID000466 | GERMANY |
| Tin | TRATHO Metal Quimica | CID003474 | BRAZIL |
| Tin | PT Masbro Alam Stania | CID003380 | INDONESIA |
| Tin | PT Aries Kencana Sejahtera | CID000309<sup>7</sup> | INDONESIA |
| Tin | PT Artha Cipta Langgeng | CID001399<sup>8</sup> | INDONESIA |
| Tin | CRM Fundicao De Metais E Comercio De Equipamentos Eletronicos Do Brasil Ltda | CID003486<sup>9</sup> | BRAZIL |
| Tungsten | Xiamen Tungsten (H.C.) Co., Ltd. | CID002320 | CHINA |
| Tungsten | Xiamen Tungsten Co., Ltd. | CID002082 | CHINA |
| Tungsten | Chongyi Zhangyuan Tungsten Co., Ltd. | CID000258 | CHINA |
| Tungsten | Japan New Metals Co., Ltd. | CID000825 | JAPAN |
| Tungsten | Masan High-Tech Materials | CID002543 | VIET NAM |
| Tungsten | Global Tungsten & Powders LLC | CID000568 | UNITED STATES OF AMERICA |

---

_____________________

<sup>7</sup> Tin Smelters PT Aries Kencana Sejahtera (CID000309) is not on the December 31, 2025 conformant smelter list due to the cessation of its operations in July 2025; however, it is still included in our smelter list to reflect its activity before July 2025.

<sup>8</sup> Tin Smelters PT Artha Cipta Langgeng (CID001399) is not on the December 31, 2025 conformant smelter list due to the cessation of its operations in July 2025; however, it is still included in our smelter list to reflect its activity before July 2025.

<sup>9</sup> Tin Smelters CRM Fundicao De Metais E Comercio De Equipamentos Eletronicos Do Brasil Ltda (CID003486) is included in the active smelter list as of February 2026.

---

| | | | |
|:---|:---|:---|:---|
| Tungsten | H.C. Starck Tungsten GmbH | CID002541 | GERMANY |
| Tungsten | A.L.M.T. Corp. | CID000004 | JAPAN |
| Tungsten | Kennametal Huntsville | CID000105 | UNITED STATES OF AMERICA |
| Tungsten | Jiangwu H.C. Starck Tungsten Products Co., Ltd. | CID002551 | CHINA |
| Tungsten | Ganzhou Seadragon W & Mo Co., Ltd. | CID002494 | CHINA |
| Tungsten | Niagara Refining LLC | CID002589 | UNITED STATES OF AMERICA |
| Tungsten | Wolfram Bergbau und Hutten AG | CID002044 | AUSTRIA |
| Tungsten | Jiangxi Yaosheng Tungsten Co., Ltd. | CID002316 | CHINA |
| Tungsten | Ganzhou Jiangwu Ferrotungsten Co., Ltd. | CID002315 | CHINA |
| Tungsten | Jiangxi Xinsheng Tungsten Industry Co., Ltd. | CID002317 | CHINA |
| Tungsten | Guangdong Xianglu Tungsten Co., Ltd. | CID000218 | CHINA |
| Tungsten | Hunan Chenzhou Mining Co., Ltd. | CID000766 | CHINA |
| Tungsten | Kennametal Fallon | CID000966 | UNITED STATES OF AMERICA |
| Tungsten | Jiangxi Tonggu Non-ferrous Metallurgical & Chemical Co., Ltd. | CID002318 | CHINA |
| Tungsten | Malipo Haiyu Tungsten Co., Ltd. | CID002319 | CHINA |
| Tungsten | Jiangxi Gan Bei Tungsten Co., Ltd. | CID002321 | CHINA |
| Tungsten | Asia Tungsten Products Vietnam Ltd. | CID002502 | VIET NAM |
| Tungsten | TANIOBIS Smelting GmbH & Co. KG | CID002542 | GERMANY |
| Tungsten | China Molybdenum Tungsten Co., Ltd. | CID002641 | CHINA |
| Tungsten | Philippine Chuangxin Industrial Co., Inc. | CID002827 | PHILIPPINES |
| Tungsten | Lianyou Metals Co., Ltd. | CID003407 | TAIWAN, PROVINCE OF CHINA |
| Tungsten | Hubei Green Tungsten Co., Ltd. | CID003417 | CHINA |
| Tungsten | Cronimet Brasil Ltda | CID003468 | BRAZIL |
| Tungsten | Fujian Xinlu Tungsten Co., Ltd. | CID003609 | CHINA |
| Tungsten | Shinwon Tungsten (Fujian Shanghang) Co., Ltd. | CID004430 | CHINA |
| Tungsten | Tungsten Vietnam Joint Stock Company | CID003993 | VIET NAM |
| Tungsten | Lianyou Resources Co., Ltd. | CID004397 | TAIWAN, PROVINCE OF CHINA |
| Tungsten | KENEE MINING VIETNAM COMPANY LIMITED | CID004619 | VIET NAM |
| Tungsten | Philippine Bonway Manufacturing Industrial Corporation | CID004797 | PHILIPPINES |
| Tungsten | Jing Yuan Tungsten Technology Co., Ltd. | CID005012 | TAIWAN, PROVINCE OF CHINA |

---

**Annex E – Countries of Origin of Conflict Minerals**

It is likely that we used conflict minerals from many of the following sources as well as some that are not identified.

---

| | | |
|:---|:---|:---|
| Albania | Georgia | Oman |
| Algeria | Germany | Panama |
| Andora | Ghana | Papua New Guinea |
| Angola | Greece | Peru |
| Anguilla | Grenada | Philippines |
| Antigua and Barbuda | Guatemala | Poland |
| Argentina | Guinea | Portugal |
| Australia | Guyana | Puerto Rico |
| Austria | Honduras | Romania |
| Azerbaijan | Hong Kong | Russia |
| Bahamas | Hungary | Rwanda |
| Bangladesh | Iceland | Saint Kitts and Nevis |
| Barbados | India | Saint Vincent and Grenadines |
| Belarus | Indonesia | Saudi Arabia |
| Belgium | Ireland | Senegal |
| Benin | Israel | Serbia |
| Bolivia | Italy | Sierra Leone |
| Bosnia and Herzegovina | Jamaica | Singapore |
| Botswana | Japan | Sint Maarten |
| Brazil | Jordan | Slomon Islands |
| Bulgaria | Kazakhstan | Slovakia |
| Burkina Faso | Kenya | Slovenia |
| Burundi | Kuwait | South Africa |
| Cambodia | Kyrgyzstan | South Korea |
| Cameroon | Lao People's Democratic Republic | Spain |
| Canada | Latvia | Sri Lanka |
| Cayman Islands | Lebanon | Sudan |
| Chile | Liberia | Suriname |
| China | Liechtenstein | Sweden |
| Chinese Taipei | Lithuania | Switzerland |
| Colombia | Luxembourg | Tajikistan |
| Congo, Democratic Republic of the | Macao | Tanzania |
| Costa Rica | Madagascar | Thailand |
| Côte d'Ivoire | Malaysia | Timore-Leste |
| Croatia | Mali | Togo |
| Curacao | Malta | Trinidad and Tobago |
| Cyprus | Mauritania | Tunisia |
| Czech Republic | Mexico | Turkey |
| Denmark | Moldova, Republic of | Uganda |
| Dominica | Monaco | Ukraine |
| Dominican Republic | Mongolia | United Arab Emirates |
| Ecuador | Morocco | United Kingdom |
| Egypt | Mozambique | United States of America |
| El Salvador | Myanmar | Uruguay |
| Estonia | Namibia | Uzbekistan |
| Eswatini | Netherlands | Venezuela |
| Ethiopia | New Zealand | Vietnam |
| Fiji | Nicaragua | Zambia |
| Finland | Niger | Zimbabwe |
| France | Nigeria |  |
| French Guiana | Norway |  |

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