ZTT had been the only domestic company passed KEMA in 2007, achieved OPGW access OPGW authentication in South African national grid in 2008, been the only Chinese qualified manufacture for Indian national grid with ZTT new developing high strength OPGW in 2009, won the biggest shares of South African 5-year-framework bidding, successfully exporting 48-core OPGW to Saudi Arabia which passed Canadian laboratory KINECTRICS strict inspection and test in 2010, developed 96-core OPGW for Saudi Arabia and perfectly passed KINECTRICS functional test in 2015.

Nowadays, ZTT OPGW sequentially sales to ASEAN, Africa, Latin America, South Asia...more than 100 overseas countries, become the only Chinese brand bulk exporting to Europe and wins great honors for “made in China”!