TRI- ACE is one of three brands belonging to Voma Tire Coporation. Voma is a US tire company with headquarters in Memphis, Tennessee. It has a team of senior technology experts with career experiences in GOODYEAR, BRIDGSTONE and FIRESTONE, And an extensive sales network across North America market. On the basis of existing tecnology and machinery of local parteners, It made comprhensive transformation and upgrades to the technology and manufacturing process of TRI- ACE tires in accordiance with the standards of ISO9001: 2000 , 3C(CHINA), DOT(USA) and E- MARK(EU) INMETRO. And our major clients are from Amercia, Australia, South Amercia, Africa, Middle East, Asia, Etc.