China completes kilometer-deep mine shaft using world-first tunneling equipment

China has achieved a world-first breakthrough in deep mining #technology after building the world's first kilometer-deep mine shaft using full-section tunneling methods. Equipped with a self-developed hard rock tunneling machine, the project overcomes the difficulties of traditional high-risk and low-efficiency deep well construction. This intelligent and green mining upgrade greatly boosts China's #iron ore supply security and strengthens the stability of the global industrial supply chain.#coolchina

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For more: https://news.cgtn.com/news/2026-06-23/China-completes-kilometer-deep-mine-shaft-using-world-first-tunneling-equipment-1Odr4panYkM/p.html

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