Group 1 - The core viewpoint of the article highlights a general increase in coal stocks in the Hong Kong market, driven by rising futures prices for coking coal and coke, alongside tightening supply due to stricter environmental inspections [1] - Coking coal futures rose over 5%, reaching 1292.5 yuan/ton, while coke futures increased by more than 2%, reaching 1775.5 yuan/ton [1] - The actual trading price of coal at the Bohai Rim ports increased by 23 yuan/ton this week, marking the highest weekly price increase recorded since last year [1] Group 2 - Major coal companies such as China Coal Energy, Yanzhou Coal Mining, and China Shenhua Energy saw stock price increases of 2.55%, over 2%, and approximately 2% respectively [1] - The tightening of supply is attributed to stricter safety and environmental inspections, leading to a structural shortage of mid-to-low calorific value quality resources at the Bohai Rim ports [1] - The market for thermal coal prices has been continuously rebounding, supported by factors such as increased arrival costs and peak summer demand [1]