# EDGAR Filing Document

**Accession Number:** 0001132924
**File Stem:** 0001193125-26-233329
**Filing Date:** 2026-5
**Character Count:** 8864
**Document Hash:** c1dd6bd27c55247f0da36aef832795db
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001193125-26-233329.hdr.sgml**: 20260521

**ACCESSION NUMBER**: 0001193125-26-233329

**CONFORMED SUBMISSION TYPE**: SD

**PUBLIC DOCUMENT COUNT**: 1

**FILED AS OF DATE**: 20260521

**DATE AS OF CHANGE**: 20260521

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** CHUNGHWA TELECOM CO LTD
- **CENTRAL INDEX KEY:** 0001132924
- **STANDARD INDUSTRIAL CLASSIFICATION:** RADIO TELEPHONE COMMUNICATIONS [4812]
- **ORGANIZATION NAME:** 06 Technology
- **EIN:** 000000000

**FILING VALUES:**
- **FORM TYPE:** SD
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-31731
- **FILM NUMBER:** 261005825

**BUSINESS ADDRESS:**
- **ADDRESS IS A NON US LOCATION:** YES
- **STREET 1:** 21 3 HSINYI RD SECTION 1
- **STREET 2:** TAIPEI TAIWAN REPUBLIC OF CHINAA
- **CITY:** TAIPEI TAIWAN
- **PROVINCE COUNTRY:** F5
- **BUSINESS PHONE:** 886223445488

**MAIL ADDRESS:**
- **ADDRESS IS A NON US LOCATION:** YES
- **STREET 1:** 21 3 HSINYI RD SECTION 1
- **STREET 2:** TAIPEI TAIWAN REPUBLIC OF CHINA
- **CITY:** TAIPEI TAIWAN
- **PROVINCE COUNTRY:** F5

**UNITED STATES**

**SECURITIES AND EXCHANGE COMMISSION**

**Washington, D.C. 20549**

**FORM SD**

**Specialized Disclosure Report**

**Chunghwa Telecom Co., Ltd.**

(Exact name of the registrant as specified in its charter)

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| | |
|:---|:---|
| **Taiwan, Republic of China** | **001-31731** |
| (State or other jurisdiction of incorporation) | (Commission File Number) |

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| | |
|:---|:---|
| **21-3 Xinyi Road, Section 1, Taipei, Taiwan 10048, Republic of China** | **100** |
| (Address of principal executive offices) | (Zip code) |

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**Cho-Fen (Angela) Tsai, telephone: +886 2 2344-5488**

(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:

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

☐ Rule 13q-1 under the Securities Exchange Act (17 CFR 240.13q-1) for the fiscal year ended __________.

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**Section 1 - Conflict Minerals Disclosure**

**Item 1.01 Conflict Minerals Disclosure and Report**

***Website***

The conflict minerals disclosure below is also available on our website at https://www.cht.com.tw/en/home/cht/investors/shareholder-services/us-sec-fillings-specialized-disclosure-report.

***Introduction to Our Conflicts Minerals Program.***

Chunghwa Telecom Co., Ltd. has implemented a conflicts minerals program and incorporated such program into our overall corporate compliance program. Throughout this report, "we", "us" or "our" means Chunghwa Telecom Co., Ltd. and its consolidated subsidiaries.

We have adopted the following policy as part of our conflicts minerals program.

*We are committed to sourcing raw materials from companies that share our values regarding respect for human rights, integrity and environmental responsibility. We are committed to complying with Section 1502 of the Dodd-Frank Act, which aims to prevent the use of minerals containing tin, tantalum, tungsten and gold ("3TGs") that directly or indirectly finance or benefit armed groups in the Democratic Republic of the Congo (DRC) or in adjoining countries ("conflict minerals"). Each of our suppliers that provide 3TGs is required to provide evidence of such supplier's compliance with relevant laws with respect to conflict minerals and documenting countries of origin for the 3TGs that it supplies, such as completing the Conflict Mineral Reporting Template ("CMRT") developed by the Responsible Mineral Initiative.*

To implement this commitment, we have conducted a detailed annual review since 2013 of our purchases of minerals necessary to the functionality of our products that we manufacture to determine whether we purchase any conflict minerals. For purposes of this item, conflict mineral means:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(1) Columbite-tantalite (coltan), cassiterite, gold, wolframite, or their derivatives, which are limited to tantalum, tin and tungsten, unless the Secretary of State determines that additional derivatives are financing conflict in the Democratic Republic of the Congo or an adjoining country; or

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(2) Any other material or its derivatives determined by the Secretary of State to be financing conflict in the Democratic Republic of the Congo or an adjoining country.

We are the largest telecommunications service provider in Taiwan and one of the largest in Asia in terms of revenue. As an integrated telecommunications service provider, our principal services include: mobile services, fixed-line services, ICT business, sales and other services.

In our annual evaluation, we evaluated all of our business activities to determine if we manufactured any products in 2025. For each of the products we manufactured, we performed inquiries such as (i) examining records of third-party purchases of materials used in our product, (ii) examining each material we purchased in 2025 for metal content to determine whether any of the purchased materials contained any 3TGs and (iii) sending a letter requesting the completion of the CMRT to each supplier from whom we purchase materials.

Based on this evaluation, we determined that (i) our subsidiary, Chunghwa Leading Photonics Tech Co., Ltd., manufactured and sold photodetectors, and the raw materials it used to manufacture such photodetectors contained gold, which was necessary for the functionality of such photodetectors; and (ii) our subsidiary, Chunghwa Precision Test Tech. Co., Ltd., manufactured and sold components used in semiconductor testing equipment, and the raw materials used in the manufacturing of such components contained gold, tin and tantalum, which were necessary for the functionality of such components. As a result, we believe that some 3TGs (namely, tantalum, tin and gold) are used in some products that we manufactured in 2025 that were necessary for the respective products' functionality.

***Reasonable Country of Origin Inquiry.***

We also were required to conduct a reasonable country of origin inquiry ("RCOI") with respect to 3TGs, given their necessity for the functionality of the products we manufactured in 2025, as illustrated above.

For our subsidiary, Chunghwa Leading Photonics Tech Co., Ltd., we determined that some of the raw materials used in manufacturing contained gold. We purchased gold through three suppliers. Two of the suppliers have provided us with written material

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and completed the CMRT to demonstrate that the gold we purchased was sourced from the smelter listed on RMI Conflict-Free Smelter lists as compliant refiner. The other supplier is the smelter listed on RMI Conflict-Free Smelter lists as compliant refiner and has provided us with LBMA (London Bullion Market Association) certificate. Each of these smelters was listed as a Conflict-Free Smelter at this website: http://www.responsiblemineralsinitiative.org/smelters-refiners-lists/<u>.</u>

For our subsidiary, Chunghwa Precision Test Tech. Co., Ltd., we determined that some of the raw materials it used in manufacturing contained gold, tin and tantalum. We performed an RCOI with respect to the gold, tin and tantalum and made inquiries with each of our thirteen suppliers of such raw materials. All these suppliers completed the CMRT to demonstrate that all of the gold, tin and tantalum used in the production of the raw materials that we purchased were sourced from the smelters that have been evaluated by the Audit Review Committee of the RBA and the GeSI and qualified for posting to the Conflict-Free Smelter lists as a compliant refiner. Each of these smelters was listed as a Conflict-Free Smelter on the respective websites: http://www.responsiblemineralsinitiative.org/smelters-refiners-lists/<u>.</u>

***Reasonable Country of Origin Inquiry Conclusion.***

Based on our evaluation of all of our purchased minerals and the RCOI performed with respect to the 3TGs described above, we have no reason to believe that any 3TGs necessary for the functionality of products we manufactured in 2025 originated in the Democratic Republic of the Congo or an adjoining country.

**Item 1.02 Exhibits**

Not required.

**Section 2 – Exhibits**

**Item 2.01 Exhibits**

None.

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**SIGNATURES**

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the duly authorized undersigned.

CHUNGHWA TELECOM CO., LTD.

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| | |
|:---|:---|
| By: | /s/ Wen-Hsin Hsu |
| Name: | Wen-Hsin Hsu |
| Title: | Senior Executive Vice President and Chief Financial Officer |

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Date: May 20, 2026

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