Group 1 - The company is in the process of developing the Dafu Mountain strontium mine, which is one of the largest strontium mines in China [2] - The company plans to establish a 300,000 tons per year selection project for celestite, and preliminary work is currently underway [2]

Group 1 - The core viewpoint of the article is that Jinrui Mining (600714.SH) is currently in the preliminary work phase for its 300,000-tonne selected limestone project [1] Group 2 - The company has communicated this information through its investor interaction platform [1] - The project involves a significant volume of 300,000 tonnes, indicating a potentially large-scale operation [1] - The current status of the project is still in the early stages, suggesting that further developments are expected in the future [1]