Chatting with a BYD supplier, I learned that BYD has a platform called DiChain, where all suppliers in the BYD ecosystem have to settle accounts. Although it does not use blockchain technology, almost everything it does is a large public chain, including issuing tokens (BYD ecosystem's electronic bonds), DEX (electronic bond trading), lending (electronic bond mortgage financing), smart contracts (automatic circulation of electronic bonds upstream and downstream), and so on. Currently, DiChain has issued more than $70 billion in funds, and if ranked by public chain, its TVL can rank third among public chains after Ethereum and Solana.