2. Chu orange: sugar orange, a kind of sweet orange, a famous specialty in Yunnan, which is famous for its sweet taste and thin skin. Sweet and slightly sour, like the taste of life. Because it was planted by Chu, the former chairman of hongta group and former tobacco king, and combined with Chu's unusual life experience, it is also called inspirational orange, and its commercial brand is orange. Originally from southern China, it is distributed in southern provinces, but it is cultivated in Yunnan, Guizhou, Sichuan, Guangdong and Taiwan Province provinces. Chu orange is a specialty of Yunnan.