Nanya New Materials Technology Co., Ltd. Third Board of Directors Twenty-Eighth Meeting Resolution Announcement

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Stock Code: 688519 Stock Abbreviation: Nanya New Materials Announcement No.: 2026-011

Nanya New Materials Technology Co., Ltd.

Announcement of Resolutions at the 28th Meeting of the Third Board of Directors

The company’s board of directors and all directors guarantee that the content of this announcement is free from any false records, misleading statements, or major omissions, and bear legal responsibility for its truthfulness, accuracy, and completeness.

1. Meeting convening details

Nanya New Materials Technology Co., Ltd. (hereinafter referred to as “the Company”) held the 28th meeting of the third board of directors on March 13, 2026, through a combination of on-site and communication voting. The meeting was chaired by Mr. Bao Xiuyin. There were 9 directors present out of 9 entitled to attend. The convening and holding of the meeting complied with the Company Law of the People’s Republic of China, relevant laws, regulations, and the Articles of Association, making the meeting legal and valid.

2. Review of the board meeting

After careful deliberation by the attending directors, the meeting reached the following resolutions:

(1) Approval of the proposal on repurchasing company shares through centralized bidding trading

Based on confidence in the company’s future development and recognition of its value, to establish and improve a long-term incentive mechanism, fully motivate employees, and promote stable, healthy, and sustainable growth, the board agrees that the company will repurchase its shares using its own funds, and at an appropriate future time, all repurchased shares will be used to implement employee stock ownership plans or equity incentives.

Voting results: 9 in favor, 0 against, 0 abstain.

Details are disclosed in the “Proposal on Repurchasing Company Shares via Centralized Bidding and the Repurchase Report” on the Shanghai Stock Exchange website (www.sse.com.cn) on the same day.

This announcement is hereby made.

Nanya New Materials Technology Co., Ltd. Board of Directors

March 17, 2026

Stock Code: 688519 Stock Abbreviation: Nanya New Materials Announcement No.: 2026-012

Nanya New Materials Technology Co., Ltd.

Proposal on Repurchasing Company Shares via Centralized Bidding and the Repurchase Report

The company’s board of directors and all directors guarantee that the content of this announcement is free from any false records, misleading statements, or major omissions, and bear legal responsibility for its truthfulness, accuracy, and completeness.

Key information:

● Total amount for share repurchase: no less than RMB 90 million (inclusive), and no more than RMB 180 million (inclusive).

● Source of funds: the company’s own funds.

● Use of repurchased shares: all shares will be used for employee stock ownership plans or equity incentives at an appropriate future time. If the company cannot use the repurchased shares within three years after the completion of the share repurchase, the unused shares will be canceled. If policies are adjusted by the state, this repurchase plan will be implemented according to the adjusted policies.

● Repurchase price: no more than RMB 147.00 per share (inclusive), which is not higher than 150% of the average trading price of the company’s stock in the 30 trading days prior to the board resolution approving the repurchase.

● Method of repurchase: centralized bidding trading.

● Duration of share repurchase: within 6 months from the date the board approves this plan.

● Shareholders’ plans to reduce holdings: the company’s controlling shareholder, actual controller, other directors, and senior management have no plans to reduce holdings within the next 3 or 6 months. If they plan to do so later, the company will disclose relevant information in accordance with laws and regulations.

● Risk warnings:

1. There is a risk that the company’s stock price may stay above the upper limit during the repurchase period, which could prevent the full implementation of the plan or only partial implementation.

2. External factors or operational needs during the repurchase period may hinder the company’s ability to raise sufficient funds, risking partial or no implementation.

3. Major events affecting stock trading prices, or significant changes in the company’s operations, financial status, or external environment, may lead to changes or termination of the plan.

4. If the employee stock ownership plan or equity incentive plan is not approved by the relevant decision-making bodies, or if recipients waive their rights, some or all of the repurchased shares may not be allocated or may be canceled.

5. Changes in regulatory policies may require adjustments to the plan during implementation.

The company will make timely decisions based on market conditions within the repurchase period and disclose relevant information promptly. Investors are advised to be aware of investment risks.

1. Review and implementation procedures of the repurchase plan

(1) On March 13, 2026, the company held the 28th meeting of the third board of directors, which approved the proposal on share repurchase via centralized bidding. All directors attended, with 9 votes in favor, none against, and none abstaining.

(2) According to Articles 25, 27, and 110 of the Articles of Association, this repurchase plan was approved by more than two-thirds of directors present at the board meeting and does not require shareholder approval.

The timing and procedures of the board review comply with relevant regulations such as the Shanghai Stock Exchange Self-Regulatory Guidelines No. 7—Share Repurchase.

2. Main content of the repurchase plan

The main points are as follows:

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(1) Purpose of repurchase

Based on confidence in future development and recognition of company value, to establish a long-term incentive mechanism, motivate employees, and promote stable, healthy, and sustainable growth, the company plans to repurchase shares using its own funds, which will be used for employee stock ownership or equity incentives at an appropriate future time.

(2) Type of shares to be repurchased: RMB ordinary A-shares issued by the company.

(3) Method of repurchase: centralized bidding trading.

(4) Implementation period

Within 6 months from the date the board approves this plan. If the stock is suspended for more than 10 trading days due to major planning, the plan will be extended after trading resumes and promptly disclosed.

The implementation may end early if:

1. The total amount of shares repurchased reaches the upper limit during the period, the plan will be completed early.

2. The total amount reaches the lower limit, the plan may be terminated early upon management decision.

3. The board decides to terminate the plan.

The company shall not repurchase shares during periods when:

(1) Major events that could significantly impact the stock price occur or are under decision-making, until legally disclosed.

(2) Other circumstances stipulated by the China Securities Regulatory Commission and the Shanghai Stock Exchange.

If regulations or policies change, the company will adjust the restrictions accordingly.

(5) Quantity, proportion, and total funds of shares to be repurchased

*Note: The estimated quantity is based on a maximum price of RMB 147.00 per share. Actual quantities and proportions will be based on the final implementation results.

(6) Price or price range, and pricing principles

The maximum price is RMB 147.00 per share, not exceeding 150% of the average stock price in the 30 trading days before the board resolution. The management will determine the actual repurchase price during implementation, considering market prices, financial status, and operational conditions.

If the company conducts capital reserve conversions, dividends, stock dividends, rights issues, stock splits, or reverse splits, the upper limit will be adjusted accordingly.

(7) Source of funds

The funds will come from the company’s own resources.

(8) Expected changes in the company’s equity structure after repurchase

Based on a minimum of RMB 90 million and a maximum of RMB 180 million, with a maximum price of RMB 147.00 per share, assuming all shares are used for employee plans or incentives and are locked, the estimated impact on equity structure is as follows:

*Note: These are preliminary estimates, actual figures depend on implementation. Differences are due to rounding.

(9) Impact analysis on daily operations, finances, R&D, profitability, debt repayment, future development, and listing status

1. As of September 30, 2025 (unaudited), total assets are RMB 5,765.1817 million, net assets attributable to shareholders are RMB 2,783.1146 million. If the maximum repurchase amount of RMB 180 million is used, it accounts for 3.12% of total assets and 6.47% of net assets, respectively. The impact on operations and finances is minimal.

2. The company’s debt ratio as of September 30, 2025, is 51.73%. The funds come from self-owned resources, so there is no significant impact on debt repayment capacity.

3. Post-repurchase, control will not change, and the company’s listing status remains unaffected.

(10) Disclosure of trading activities by directors, senior management, controlling shareholders, and related persons within 6 months before the board decision

On September 17, 2025, the company received the “Transfer Registration Confirmation” from China Securities Depository and Clearing Corporation Shanghai Branch, completing registration for the first vesting of the 2024 restricted stock incentive plan. Senior managers Bao Xinyang, Xi Kui Dong, Zhang Liu, and Li Wei received allocated shares. Details are disclosed in the “Announcement of the First Vesting of the 2024 Restricted Stock Incentive Plan” on the SSE website (Announcement No.: 2025-072).

One of the company’s actual controllers and chairman, Bao Xiuyin, has reduced his holdings by 3,736,000 shares through centralized bidding and block trades. Details are in the “Reduction Plan and Results Announcement” (Announcement No.: 2025-084).

Other actual controllers and directors, including Bao Xiuchun, Zheng Guangle, Huang Jianke, Bao Xiuliang, Gao Hai, Bao Ailan, and director Zheng Xiaoyuan, have also reduced holdings through trading. Details are in the “Reduction Results Announcement” (Announcement No.: 2026-010).

Apart from these, no other buy/sell activities occurred within 6 months before the decision, and there are no conflicts of interest, insider trading, or market manipulation related to this plan. No additional reduction or increase plans are in place during the period. If future plans arise, the company will disclose timely.

(11) Inquiry about future reduction plans within 3 and 6 months

As of the date of this announcement, the company’s directors, senior management, controlling shareholders, and major shareholders (holding over 5%) have no plans to reduce holdings in the next 3 or 6 months. If such plans are made, the company will comply with relevant regulations and disclose accordingly.

(12) Arrangements for cancellation or transfer after repurchase

The repurchased shares will be used for employee stock plans or incentives at an appropriate time. If not transferred or canceled within 3 years after the plan’s announcement, the unused shares will be canceled. Adjustments will be made if policies change.

(13) Safeguards for creditors’ interests

The repurchase will not affect normal operations or cause insolvency. If cancellation occurs, the company will follow legal procedures and notify creditors to protect their rights.

(14) Authorization for implementing the repurchase

The board authorizes management to handle all matters related to the repurchase, including timing, price, quantity, approval procedures, and necessary adjustments due to policy or market changes. The authorization is valid from the date of board approval until completion of the plan.

3. Risks and uncertainties of the repurchase plan

(1) Stock price may stay above the upper limit, affecting full or partial implementation.

(2) External factors or operational needs may hinder fund raising, affecting implementation.

(3) Major events or changes in the company’s situation may lead to plan adjustments or termination.

(4) If the employee incentive plan is not approved or participants waive rights, some shares may not be allocated or may be canceled.

(5) Regulatory changes may require plan adjustments during implementation.

4. Other notes

(1) The company has opened a dedicated securities account for repurchase at China Securities Depository and Clearing Corporation Shanghai Branch:

Account Name: Nanya New Materials Technology Co., Ltd. Repurchase Securities Account

Account Number: B884493246

This account is solely for repurchasing company shares.

(2) The company will make timely disclosures during the repurchase period based on market conditions and progress.

This announcement is hereby issued.

Nanya New Materials Technology Co., Ltd. Board of Directors

March 17, 2026