In August 2011, Hubei Sanhuan Forging Equipment Co., Ltd. and Wuhan Ship Design and Research Institute signed a cooperation agreement to jointly develop, manufacture and sell portable rescue capsules.

Wuhan Ship Design Institute is affiliated to China Shipbuilding Research and Design Center of China Shipbuilding Industry Corporation. It has long been engaged in the overall research and design development of military ships. It has successively researched and designed dozens of models of various types of combat ships, civilian ships, oxygen tanks, Deep submersibles, etc., have made significant contributions to the construction of China's naval equipment and marine engineering, and are known as "the cradle of warships." Make full use of independent passive carbon dioxide air conditioning technology, passive air regeneration technology, missed air purification technology, cold catalyst carbon monoxide technology and submarine technology to create a portable life-saving cabin for electricity-free mines.