Siam Progress 51 Co., Ltd. is based in Thailand and lists charcoal products on Global Trade Plaza. The company offers several grades of mangrove wood charcoal, including Kachi, B1, B2 and B3 types. The Kachi grade consists of 100% mangrove wood in long shapes with a stated burning time of 1.5 to 2 hours. The B-type grades are also 100% mangrove wood in big lump and thick shapes with the same burning time range, differing in size: B1 at 6 to 8 inches mixed with 2 to 5 inches, B2 at 2 to 4.5 inches, and B3 at 1 to 3 inches. Buyers can send an enquiry through Global Trade Plaza.