Research and development, production, processing, and sales of silicon products, industrial silicon powder, and silicon products; Research and development, production, and sales of mineral products; Research and development, purchase and sales of petroleum coke products; Development, production, purchase and sale of agricultural and sideline products (excluding grain and cotton); Agricultural and forestry planting, production, development, procurement and sales; Sales of machinery and equipment; Information consulting services; Import and export of goods and technology, and conduct small-scale border trade. (For projects that require approval by law, business activities can only be carried out after approval by relevant departments)
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Research and development, production, processing, and sales of silicon products, industrial silicon powder, and silicon products; Research and development, production, and sales of mineral products; Research and development, purchase and sales of petroleum coke products; Development, production, purchase and sale of agricultural and sideline products (excluding grain and cotton); Agricultural and forestry planting, production, development, procurement and sales; Sales of machinery and equipment; Information consulting services; Import and export of goods and technology, and conduct small-scale border trade. (For projects that require approval by law, business activities can only be carried out after approval by relevant departments)