Our company is Shaanxi Long yield Co., Ltd ,we import brass ashes which produce from smelting plant or copper refinery factory, we import these kinds materials every month about 300-500 MT.       Please tell us your copper content and the price (CIF Lian Yun gang port, China).       We pay you by L/C,90% payment at the loading port after SGS/A.H night international Ltd  inspection, 10% payment at the destination port after CCIC inspection       Looking forward to your reply earlier and hope to cooperate with you long terms.