Many places in China are famous for their beef and mutton. The following are some of the best beef and mutton producing areas and brands in China:

1. Inner Mongolia Autonomous Region: Inner Mongolia Autonomous Region is one of the most famous beef and mutton producing areas in China. The beef and mutton here are of good quality and delicious taste, especially the beef and mutton on the grassland, which is regarded as a delicious food.

2. Xinjiang Uygur Autonomous Region: Xinjiang Uygur Autonomous Region is also one of the famous beef and mutton producing areas in China. The beef and mutton here are famous for their tender meat and delicious taste, especially roast whole sheep and kebabs, which are the food representatives in Xinjiang.

3. Qinghai Province: Qinghai Province is one of the important beef and mutton production bases in China. The beef and mutton here are of good quality and tender meat, especially the beef and mutton around Qinghai Lake, which is highly praised.

4. Gansu province: Gansu province is also one of the famous beef and mutton producing areas in China. The beef and mutton here are famous for their tender meat and delicious taste, especially Lamian Noodles in Lanzhou and mutton bread in soup, which are the food representatives in Gansu.

5. Sichuan Province: Sichuan Province is also one of the famous beef and mutton producing areas in China. The beef and mutton here are of good quality and delicious taste, especially the beef and mutton in the western Sichuan Plateau, which is regarded as a delicious dish.

The above are some of the best beef and mutton producing areas and brands in China. Of course, there are many other places that also have delicious beef and mutton. You can choose according to your personal taste and preference.