Fertilizer production; road freight transport (excluding dangerous goods); pesticide wholesale. General items: chemical fertilizer sales; fertilizer sales; compound microbial fertilizer research and development; bio-organic fertilizer research and development; chemical product production (excluding licensed chemical products); technical services, technical development, technical consulting, technical exchange, technology transfer, technology promotion; mechanical equipment sales; general mechanical equipment installation services; electronic and mechanical equipment maintenance (excluding special equipment); mechanical equipment research and development; special equipment sales; general equipment manufacturing (excluding special equipment manufacturing); chemical product sales (excluding licensed chemical products); biochemical product technology research and development; special equipment manufacturing (excluding licensed special equipment manufacturing); road freight transport of general cargo vehicles with a total mass of 4.5 tons or less (excluding online freight and dangerous goods); import and export of goods; import and export of technology.