This week on the Caixin-Sinica Business Breif: Warren Buffet cashes in on BYD as his sell-down continues, Hua Hong Semiconductor reports its 10th straight quarter of record revenue, and ByteDance takes on Meituan by venturing into food delivery.

In addition, we speak with Denise Jia of Caixin-Global about China's huge appetite for minerals, which is only increasing as the electric vehicle industry continues to expand.

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