ENN Ecological Holdings Co., Ltd. (ENN Ecological in short) is one of the earliest public listed companies in Hebei Province. The stock code is 600803. As an integral part of the clean energy industry chain of ENN Group, ENN Ecological attaches importance to the national development demand and strategic mission, targets at "being a leading innovative enterprise that integrates both upstream and downstream businesses of clean energy", relies on the fair, open and interconnected national pipeline network, forms an ecology alliance with partners both home and abroad, and provide residents and industrial and commercial users with one-stop clean, stable, efficient, convenient and affordable clean energy service. The core businesses cover natural gas development, production, processing, trade, logistics, distribution and investment, smart energy construction service, production and integrated technical services of clean and efficient energy such as coal-to-gas. In the future, ENN Ecological will take advantage of its capabilities of technology innovation of full value chain to achieve sustainability in an innovative manner.