Apr. 2010
Certificate number CLK-Q-1613 (certified by HSB)
Sep. 2010
With a total area: 22.9 hectares, of which Pipe Mill areas: 4.2 hectares and port of shipment: 1,000 DWT
Oct. 2010
Achieved API Spec Q1 Certificate No. Q1- 1487, ISO/TS 29001 Certificate No. 1376, API Spec 5L Certificate No. 5L-0911.
Mar. 2012