1. Payment of 2024 stock dividend
- Payment rate: 100:25 (shareholder owning 100 shares is entitled to 25 new shares).
- Principle of rounding and principle of handling fractional shares: To ensure that the number of successful issuances does not exceed the number of issued shares, the number of additional shares issued to each existing shareholder will be rounded to the whole number according to the rounding down principle, the decimal fraction (if any) will be cancelled.
For example: On the record date of shareholders to exercise the right to receive additional shares issued to pay dividends in 2024, shareholder A owns 155 YBM shares, shareholder A will receive an additional 155:100 x 25 = 38.75 YBM shares. According to the rounding principle, shareholder A will receive 38 YBM shares, the fractional shares of 0.75 shares will be canceled.
- Payment place:
+ The holders whose shares have been deposited will receive dividend at the depository member where they opened depository account.
+ The holders whose shares have not been deposited will receive dividend at Yen Bai Industry Mineral Joint Stock Company (Address: Southern Industrial Park, Van Phu Ward, Lao Cai Province.)
2. Right issue
+ Right code: MIRYBM251
+ ISIN code: VNMIRYBM2519
(Effective date of code allocation: 10/12/2025; effective date of code cancellation: 06/01/2026)       
+ Planned quantity of issued shares: 14,299,880 shares.
+ Issue price: 10,000 VND/share
+ Execution rate: 1:1 (shareholders are entitled to 1 right for each share that they own and to buy 1 new share for each right).
- Principle of rounding, handling fractional shares. handling undistributed shares:
+ Because the offering ratio is 1:1, there are no fractional shares and no need to round up the fractional shares.
+ The remaining shares that have not been fully offered to existing shareholders are the remaining shares due to existing shareholders refusing to buy part or all of the shares in the offering. The Board of Directors (BoD) determines the criteria and chooses to offer to existing shareholders or outside investors with offering conditions, price conditions, conditions on rights and obligations of investors that are not more favorable than the offering conditions for existing shareholders.
+ The handling of the remaining shares must comply with the provisions of Article 42 of Decree 155/2020/ND-CP dated December 31, 2020, ensure the provisions of Clause 2, Article 195 of the Enterprise Law 2020 No. 59/2020/QH11 and ensure other conditions according to the provisions of current law.
+ The remaining undistributed shares distributed to other investors according to the decision of the BoD will be restricted from transfer for one (01) year from the date of closing the offering.
+ The number of remaining undistributed shares which are offered to existing shareholders or external investors (if any) will be restricted from transfer within one (01) year from the date of closing the offering.
+ In case the time limit for distributing shares expires according to the provisions of law (including the extended period (if any), if there are still unsold shares, these unsold shares will be cancelled and the BoD will decide to close the offering.
- Regulations on rights transfer:
+ Time for transfer of right issue: From 10/12/2025 to 26/12/2025
+ Right is transferred once. The transferee is not allowed to transfer to a third party. The transferor and the transferee shall negotiate the transfer price and pay the transfer fee. Foreign shareholders are not allowed to receive  rights from other shareholders to ensure the maximum foreign ownership ratio at the Company as regulated.
- Regulations on subscribed securities:
+ Time for subscription and payment: From 10/12/2025 to 31/12/2025
+ Subscribed securities are freely transferable.
- Place for implementation:
+ The holders whose shares have been deposited have to make transfer of purchase right, subscription and payment at the depository member where they opened depository account.
+ The holders whose shares have not been deposited will make right transfer, subscription and payment at Head Office of Yen Bai Industry Mineral Joint Stock Company - Address: Southern Industrial Park, Van Phu Ward, Lao Cai Province.
- Information on blockade account for subscription:
+ Account holder: Yen Bai Industry Mineral Joint Stock Company
+ Account number: 3100201044038
+ Account opening place: Agribank - Tu Liem Branch
- Information on VSDC account for cash transferring:
+ Account number: 1220173177
+ Account name: Viet Nam Securities Depository and Clearing Corporation 
+ At the bank: Bank for Investment and Development of Vietnam – Ha Thanh Branch.
Coordination details and procedures for corporate action processing for holders of the above securities between VSDC, the Securities registering institution and depository members are specified in the Guideline on corporate action processing for securities holders at VSDC