The manager said the team implemented full-process control in the construction work, from the emergency response system, fire protection and safe electricity use to the arrangement for the cable trench and work at heights.

China's new manned submersible Fendouzhe, or "Striver", set a national diving record of 10,909 meters in the Challenger Deep of Mariana Trench in 2020, the deepest known point of Earth's oceans.

With other highly anticipated movies such as Meg 2: The Trench, starring Jason Statham and Wu Jing, and Christopher Nolan's Oppenheimer, Zhi said the Chinese film market is experiencing a vibrant revival, which will boost confidence for the creation of more high-quality movies.

The highly anticipated upcoming releases include One and Only, which follows the story of a young dancer pursuing his hip-hop dream, and Meg 2: The Trench, the sequel to a successful Sino-US sci-fi coproduction.

This process avoids the need to have long stretches of an open trench for pipe laying, which causes extreme disruptions to the surrounding environment.

Similar to the name of this chip, Mariana is the deepest trench in the world, implying the difficulty of developing in-house chips.