Core Viewpoint - Hebei Iron and Steel Co., Ltd. (000709.SZ) is actively involved in the research and development of materials related to controllable nuclear fusion devices through its subsidiary, Hebei Iron and Steel Materials Technology Research Institute [1] Group 1 - The company is a key player in the development of materials for nuclear fusion technology [1] - Hebei Iron and Steel Materials Technology Research Institute is a holding subsidiary of Hebei Iron and Steel Co., Ltd. [1]