Concordium is a trading company based in Hong Kong with our own production bases Mainland China. We are experienced calcination. Our plant managers have over 10 years\' experience this industry. 3 plants about 200 workers. 7 vertical kilns. main product ...

Reliable and reputable manufacturer of calcined petroleum coke for steel making, chemistry, precision cast industry more than 20 years . Our firm noble customers end users are spread throughtout Asia, Europe, America , Middle East etc. With advanced ...