Brossard, Quebec – TheNewswire - October 31, 2025 – CHARBONE CORPORATION (TSXV: CH; OTCQB: CHHYF; FSE: K47) (“CHARBONE” or the “Company”), a North American producer and distributor specializing in clean Ultra High Purity (“UHP”) hydrogen and strategic industrial gases, is pleased to announce that the Company has retained the US-based corporate communications firm, RB Milestone Group LLC (“RBMG”), to provide investor relations services including corporate communications advisory, non-deal roadshow advisory, ...