Tranche Update on Union Corporation's Equity Buyback Plan announced on March 9, 2016.

Union Corporation is a Korea-based company principally engaged in the manufacture and sale of cement and rare metals. Along with its subsidiaries, the Company operates its businesses through cement segment, which manufactures white Portland cements, alumina cements, hardening cements and tile adhesive cements, which are used as construction materials and others; rare metals segment, which provides vanadium, molybdenum and others used for manufacturing of steel, as well as filters, dryers and others, and wood pellet segment, which produces sawdust. It also provides white fused alumina, high-strength grouts, non-shrinking grouts, hardening grouts, tile adhesives, tile bonds, mortars and others.