Yangtze Optical Fibre and Cable Joint Stock Limited Company is principally engaged in the manufacture and sales of optical fiber preforms, optical fibers and optical fiber cables. The Company operates its business through two segments. The Optical Fibres and Optical Fibre Preforms segment is engaged in the manufacture of optical fibers and optical fiber performs which are sold to external parties. The Optical Fibre Cables segment is engaged in the manufacture of optical fiber cables which are sold to external parties. Through its subsidiaries, the Company is also engaged in the production and sales of premises distributed system.