LME copper up as base metal sentiment gets lift from gains in Asian stocks along with possible short-covering by Japan traders as yen weakens; are also gains in SHFE copper, say traders. At same time, metal drawing support from recovery in London afternoon session when U.S. stock markets rose modestly (though bourses later ended lower). LME 3-month copper at $5,935/ton, up $46 on London PM kerb. Singapore trader says while copper firmer today, reports of large copper stocks in Shanghai warehouses weighing on physical market.