The address for the principal business office of Gold Sino is: Vistra Corporate Services Centre Ground Floor NPF Building Beach Road, Apia, Samoa The address for the principal business office of Mr. Yin is: 11F, Building C, No. 225, Section 2, Chang'an E. Rd., SongShan District, Taipei City, Taiwan

The principal business of Gold Sino is as a holding company of its passive investment. It does not conduct any other businesses. Gold Sino holds or owns various types of assets including shares of listed companies such as the Issuer and private equity. Mr. Yin is a director of the Issuer, the chairman of Nan Shan Life Insurance Company, Ltd. and, based on the entitlement and assignment arrangement described in Item 2(a), may be deemed to have voting and dispositive power over the shares held by Gold Sino.

Each of the Reporting Persons has not, during the last five years, been convicted in a criminal proceeding (excluding traffic violations or similar misdemeanors).

Each of the Reporting Persons has not, during the last five years, been a party to a civil proceeding of a judicial or administrative body of competent jurisdiction, and as a result of such proceeding was or is subject to any judgment, decree or final order enjoining future violations of, or prohibiting or mandating activities subject to, federal or state securities laws or finding any violation with respect to such laws.

See Item 2(a) above.

Item 3 of the Schedule 13D is hereby amended by adding the following paragraphs: Following the death of Mr. Yin's father, Mr. Yin, his mother, and another successor became entitled under the laws of descent and distribution to one-third each of the Gold Sino shares formerly held by his father. On June 22, 2026, Mr. Yin's mother agreed to assign her entitlement to one-third of the Gold Sino shares to Mr. Yin. No Ordinary Shares were directly acquired by Mr. Yin in connection with such events. The change in beneficial ownership results from the entitlement and assignment arrangement described herein. The information set forth in or incorporated by reference into Items 2, 4, 5 and 6 of this Schedule 13D is hereby incorporated by reference in its entirety into this Item 3.

Item 4 of the Schedule 13D is hereby amended by adding the following paragraphs: On September 16, 2025, the Issuer announced that, at the request of the Issuer, Mr. Yin agreed to issue an undertaking to the lenders led by Mega International Commercial Bank Co., Ltd. ("Mega") that he will procure equity investments in the Issuer with an aggregate investment amount of NTD$2,500 million by December 31, 2026 (the "Undertaking"). The Undertaking was provided to facilitate discussions regarding a potential further amendment to the syndicated credit facility agreement with Mega, as mandated lead arranger, and the other lenders. Such equity investments are expected to be made based on the prevailing market price of the Issuer's Ordinary Shares at the time of the investments, subject to approval by the audit committee and the board of directors of the Issuer as applicable. On March 12, 2026, the Issuer announced the new equity investment under the share purchase agreement, comprising the issuance of 5,300,000 Ordinary Shares to Gold Sino for an aggregate subscription price of approximately US$16.7 million. As announced by the Issuer, the new equity investment was the first equity investment secured by Mr. Yin pursuant to the Undertaking. Gold Sino acquired the purchased shares for investment purposes. To the extent Mr. Yin procures further equity investments in the Issuer in satisfaction of the Undertaking, such investments may result in the acquisition of additional securities of the Issuer, including by Gold Sino or its affiliates, and a corresponding change in the Issuer's capitalization. As noted in the Issuer's announcements, any such equity investments remain subject to further negotiation, the execution of definitive agreements and approval by the audit committee and the board of directors of the Issuer as applicable, and there can be no assurance that any such equity investments will be procured or completed. The Reporting Persons intend to review their respective investment on a regular basis and, as a result thereof, may at any time or from time to time determine, either alone or as part of a group, (i) to acquire additional securities of the Issuer, through open market purchases, privately negotiated transactions or otherwise, (ii) to dispose of all or a portion of the securities of the Issuer owned by them in the open market, in privately negotiated transactions or otherwise, (iii) to undertake an extraordinary corporate transaction such as a tender offer or exchange offer for some or all of the Ordinary Shares not held by the Reporting Persons or a merger, acquisition, consolidation or other business combination or reorganization involving the Issuer or (iv) to take any other available course of action, which could involve one or more of the types of transactions or have one or more of the results specified in clauses (a) through (j) of Item 4 of Schedule 13D under the Exchange Act, as amended. Any such acquisition or disposition or other transaction would be made in compliance with all applicable laws and regulations. Notwithstanding anything contained herein, the Reporting Persons specifically reserve the right to change their intention with respect to any or all of such matters. In reaching any decision as to their respective course of action (as well as to the specific elements thereof), the Reporting Persons each currently expects that they would take into consideration a variety of factors, including, but not limited to, the following: the Issuer's business and prospects; other developments concerning the Issuer and its businesses generally; other business opportunities available to such Reporting Person; developments with respect to the business of the Reporting Persons; changes in law and government regulations; general economic conditions; and liquidity and stock market conditions, including the market price of the securities of the Issuer and currency fluctuations. The information set forth in or incorporated by reference into Items 3, 5 and 6 of this Schedule 13D is hereby incorporated by reference in its entirety into this Item 4.

Items 5(a)-(d) of the Schedule 13D are hereby amended and restated in their entirety as follows: The information set forth in or incorporated by reference in Items 2, 3 and 4 and the responses of each Reporting Person to Rows 7 through 13 of the cover pages of the Schedule 13D are hereby incorporated by reference in its entirety into this Item 5. Except as otherwise stated herein, each Reporting Person expressly disclaims any beneficial ownership of the Ordinary Shares held by each other Reporting Person.

See Item 5(a) above.

Except as disclosed in the Schedule 13D, no transactions in the Ordinary Shares were effected by the Reporting Persons during the past 60 days.

Except as disclosed in the Schedule 13D, to the best knowledge of the Reporting Persons, no other person has the right to receive or the power to direct the receipt of dividends from, or the proceeds from the sale of, any Ordinary Shares beneficially owned by any of the Reporting Persons.

Item 5(e) of the Schedule 13D is hereby amended by incorporating the information set forth in Item 3, which is hereby incorporated by reference into this Item 5(e).

Item 6 of the Schedule 13D is hereby amended by adding the following paragraphs: The information set forth in Items 2 and 3 of this Amendment is hereby incorporated by reference in its entirety into this Item 6. The information set forth in or incorporated by reference into Items 3 and 4 of this Schedule 13D is hereby incorporated by reference in its entirety into this Item 6.

EXHIBIT INDEX Exhibit Number Description of Exhibit 99.1 Joint Filing Agreement, dated July 14, 2026, by and between the Reporting Persons