Announcement auction - HOANG THACH BAGGING JOINT STOCK COMPANY

The name of the Share Ownership Company

VIETNAM NATIONAL CEMENT CORPORATION

The name of the Auction Issuer

HOANG THACH BAGGING JOINT STOCK COMPANY

Address

Nhi Chieu Ward, Hai Duong City

Business line

Manufacturing of corrugated paper, corrugated cardboard, and paper and cardboard packaging …

Chartered capital

20,479,320,000 VND

Par value

10,000 VND/share

Beginning price

43,145,203,200 VND/share lot

Number of shares offered for competitive sale

568,448 shares

Number of shares for foreigners

0 shares

An auction method

Each investor is given one Auction Participation Form and can only record a maximum of 01 (one) purchase prices

Step price: 1,000,000 VND/share

Registration time and place

+ Time: From November 27ᵗʰ, 2025 to 3:30 PM on December 16^th, 2025

+ Place: At Branches/ Trading Offices of PHS, detail as follow:

1, Tan Binh Branch

Park Legend Building, 251 Hoang Van Thu Street, Tan Son Hoa Ward, HCMC,

Phone: (+84 28) 3813 2401 Fax: (+84 28) 3813 2415

2, District 3 Branch

4^th Floor, D&D Tower, 458 Nguyen Thi Minh Khai, Ban Co Ward, HCMC,

Phone: (+84 28) 3820 8068 Fax: (+84 28) 3820 8206

3, District 1 Branch

Room 1003A, 10th Floor, Ruby Building, 81-83-83B-85 Ham Nghi, Sai Gon Ward, HCMC,

Phone: (+84 28) 3535 6060 Fax: (+84 28) 3535 2912

4, Thanh Xuan Branch

5^th Floor, UDIC Complex Building, N04 Hoang Dao Thuy, Thanh Xuan Ward, Hanoi,

Phone: (+84 24) 6250 9999 Fax: (+84 24) 6250 6666

5, Hai Phong Branch

2^nd Floor, Eliteco Building, 18 Tran Hung Dao, Hong Bang Ward, Hai Phong,

Phone: (+84 225) 384 1810 Fax: (+84 225) 384 1801

Time of deposit

+ Time: From November 27ᵗʰ, 2025 to 3:30 PM on December 16^th, 2025

+ Customer transfer deposit (10% of the total value of shares registered for competitive offering at a beginning price in VND) to an account specified in the competitive offering regulations,

Time and place to submit the auction slip

+ Time: No later than 4:00 PM on December 19ᵗʰ, 2025,
+ Place: Drop Competitive offering slip directly into the box at the PHS branches/transaction offices mentioned above,

Note: Auction slip must be sealed in a sealed envelope and signed by the customer's signature on the sealing edge,

Time and place for auction

+ Time: 9:00 am on December 23ᵗʰ, 2025

+ Place: Hanoi Stock Exchange (No, 2 Phan Chu Trinh, Hoan Kiem Ward, Hanoi City),

Time for deposit to buy shares

From December 23ᵗʰ, 2025 to December 29ᵗʰ, 2025

Time for refund the deposit

From December 24ᵗʰ, 2025 to December 29ᵗʰ, 2025