Nanchang Sigma Chemic.branch of Jiangxi Sigma Group Co.,LTD we are a professional manufacturer of shisha hookah charcoal, coconut shell hookah charcoal, bamboo hookah charcoal. instant lite shisha charcoal, OEM factory.tartaric acid. 1.honesty and being thankful 2. charcoal and tartaric acid 3.Creating value for customers