INTERNATIONAL BRIEFS; Sumitomo to Take Loss To Settle U.S. Lawsuits Published: May 9, 1998 The Sumitomo Corporation of Japan said yesterday that it would take an extraordinary loss of $150 million t

INTERNATIONAL BUSINESS; Former Copper Trader Gets 8 Years in Prison Published: March 26, 1998 Yasuo Hamanaka, a former Sumitomo Corporation trader who once dominated the global copper market, was

Yasuo Hamanaka (浜中 泰男 Hamanaka Yasuo?) is a man who formerly was the chief copper trader at Sumitomo Corporation- one of the largest trading companies in Japan - and was al