Hunan Province, known for its rich history and diverse culture, has a thriving trade sector. Some of the prominent trade companies operating in Hunan Province include:

1. Xinhua International Trade Co., Ltd.
Xinhua International Trade Co., Ltd. is one of the largest and most diversified trade companies in Hunan Province. The company primarily focuses on importing and exporting a wide range of goods, including industrial machinery, electronics products, foodstuffs, chemicals, and more.

2. Yunnan Hongze Trade Co., Ltd.
Yunnan Hongze Trade Co., Ltd. is another leading trade company operating in Hunan Province. The company specializes in importing and exporting high-quality goods, including machinery components, electrical equipment, furniture & home decor, beauty & personal care products, food & beverage processing equipment, agricultural products, and more.

In conclusion, the trade sector in Hunan Province is diverse, with a focus on importing and exporting a wide range of goods. Some of the prominent trade companies operating in this region include Xinhua International Trade Co., Ltd., Yunnan Hongze Trade Co., Ltd., among others.