TEX Addresses: ZIP 320
TEX addresses are exclusively for exchanges (Zashi users won’t have a TEX address of their own), and they make it possible for Zashi and other wallets to send shielded funds to an exchange like Binance, which requires transparent deposits.
How it works: When sending to a TEX address from Zashi, shielded funds pass through a transparent address before arriving at the exchange. A new, never-seen-before and never-to-be-seen-again transparent address is used for this intermediate step. Your Zashi wallet address and other details remain “disconnected” and therefore not visible to the exchange or anyone else.
https://zips.z.cash/zip-0320