Tags 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).