Contract to supply valves and related equipment in HVAC system, fire protection for The Zei building, 8 Nguyen Duc Tho, My Dinh, Tu Liem, Hanoi. The total value of the contract together with the annexes is about 3.5 billion VND. The contract was made with high appreciation from the customer for the quality of the goods, commensurate with the value of the building.