Euronext spokesperson Flavio Bornancin-Tomasella stated the CoinShares Zcash ETP suspension is due to operational settlement requirements until standard operations are supported by the Central Securities Depository.

From the articleEuronext Paris suspends trading in CoinShares Zcash ETP on launch dayAlso in Settlement Concerns Prompt Euronext to Suspend CoinShares’ Zcash ETP on Debut, Euronext suspends CoinShares Zcash ETP months before EU privacy crackdown - Cryptopolitan