Announcement auction - VIETNAM URBAN CONSTRUCTION AND INVESTMENT JOINT STOCK COMPANY

No: 28/2025/TB-DVCK

Ho Chi Minh City, July 8^th, 2025

ANNOUNCEMENT

(Ref: Competitive offering of shares at HNX)

Dear Valued Customers,

Phu Hung Securities Corporation (PHS) would like to send our sincere greetings and thank you for using our services.

PHS would like to announce the information of Competitive offering of shares as follow:

The name of the Share Ownership Company	HOUSING AND URBAN DEVELOPMENT CORPORATION
The name of the Auction Issuer	VIETNAM URBAN CONSTRUCTION AND INVESTMENT JOINT STOCK COMPANY
Address	4th floor, CC4 building, Linh Dam Peninsula, Hoang Liet ward, Hoang Mai district, Hanoi
Business line	Investing in real estate projects; construction and installation
Chartered capital	35,000,000,000 VND
Par value	10,000 VND/share
Beginning price	28,439,642,000 VND/share
Number of shares for a lot auction	1.846.730 shares
Number of shares for foreigners	1,846,730 shares
A competitive offering method	Each investor shall be issued one Auction Participation Form and may submit only one (01) bid price for the entire lot of shares. Step price: 1.000 VND
Registration time and place	+ Time: From 8:30 AM on July 8ᵗʰ, 2025 to 3:30 PM on July 29ᵗʰ, 2025 + Place: At Branches/ Trading Offices of PHS, detail as follow: 1. Phu My Hung Trading Offices CR2-08 Building, 107 Ton Dat Tien, Tan Phu Ward, HCMC. Phone: (+84 28) 5413 5478 Fax: (+84 28) 5413 5473 2. 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 3. 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 4. 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 5. Thanh Xuan Branch 5^th Floor, UDIC Complex Building, N04 Hoang Dao Thuy, Yen Hoa Ward, Hanoi. Phone: (+84 24) 6250 9999 Fax: (+84 24) 6250 6666 6. 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 8:30 AM on July 8ᵗʰ, 2025 to 3:30 PM on July 29ᵗʰ, 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 competitive offering slip	+ Time: No later than 4:00 PM on August 1ˢᵗ, 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 Competitive offering	+ Time: 09:00 am on July 23^th, 2025 + Place: Hanoi Stock Exchange (No. 2 Phan Chu Trinh, Hoan Kiem Ward, Hanoi City).
Time for deposit to buy shares	From August 5ᵗʰ, 2025 to 4:00 PM on August 11ᵗʰ, 2025.
Time for refund the deposit	From August 6ᵗʰ, 2025 to August 11ᵗʰ, 2025.