Tags VIS – Thai Hung Company Japan steel firm Kyoei to up stake in VIS Thursday, Jul 19, 2018 Japanese steel firm Kyoei Steel has registered to purchase two million shares in Viet-Italy Steel JSC (VIS) to increase its ownership to 70.42 per cent. Japanese Kyoei Steel Company buys 20% shares of VIS Wednesday, Nov 08, 2017 Japanese Kyoei Steel Company officially became strategic shareholder of Viet Nam-Italy Steel Joint Stock Company (VIS).