January 28th Update: On January 28th, Yantai Zhongrui Chemical's hydrogen fluoride (HF) unit, with an annual capacity of 30,000 tons across two production lines, is currently in operation. The primary supply of hydrogen fluoride is directed to Sinochem. The contracted price at the beginning of the month was RMB 12,000–12,100 per ton delivered to the plant, an increase of RMB 100 per ton compared to the previous month, with actual transaction prices subject to negotiation. Chempricehub's analysis of hydrofluoric acid shows a long-short score of +1. The article indicates that Yantai Zhongrui Chemical's hydrogen fluoride unit is operating normally, with the contracted price at the beginning of the month at RMB 12,000–12,100 per ton delivered to the plant, an increase of RMB 100 per ton compared to the previous month, representing a rise of approximately 0.83%. This suggests that spot market supply remains stable while demand has strengthened, with a clear upward trend in prices, which is favorable for spot prices. Scoring rationale: The price increase reflects tight supply-demand conditions in the market, constituting a general positive factor (+1), with no futures data involved.