Rongjiang is based in Thailand and lists Zinc Ash 50%-65%, Eaf Dust 25%-38%, and Copper Sludge 6%-35% on Global Trade Plaza. The company states it has been operating in the non-ferrous metal business for over nearly 20 years and mainly deals in zinc and copper ingots and enrichments. Rongjiang lists 2007 as its year of establishment. The products are described as zinc ash with zinc content above 50%, eaf dust with zinc content above 25%, and copper sludge with nickel content above 6%, all with worldwide origin and CIF Asia Port trade terms. Order quantities are specified in dry metric tons with a tolerance of +/-5%. Buyers can send an enquiry through Global Trade Plaza.