Group 1 - The company has an annual sulfuric acid production capacity of 1.3 million tons [2] - In the first half of 2025, the company produced 824,800 tons of sulfuric acid, generating revenue of 240 million yuan, which represents a year-on-year increase of 383.80% [2] - The gross profit margin for the sulfuric acid business is 47.09%, indicating a significant improvement in profitability [2] Group 2 - The increase in sulfuric acid prices has positively impacted the company's performance [2] - Future fluctuations in sulfuric acid prices may affect the company's financial results [2]