Found 1 exchange where Union is traded. As of 18 September, the best price to buy Union — BUSD0.00026 — is on Bitvavo, the venue with the highest trading volume for the U/EUR pair (22.2 K BUSD).
The maximum daily trading volume is observed in the U/EUR trading pair at Bitvavo and reaches BUSD 22 217.17 (0.0082% of the exchange's total trading volumes) at the price BUSD 0.00026 per 1 U.