PIEXGO to list Contentos(COS) on 12 October 2019piexgo (28) in halloween ā¢Ā 5 years agoĀ PIEXGO is pleased to officially list Contentosio (COS) and open COS/BTC trading pair on 12 October 2019. šOpening of Trade: 07:00, 12 October 2019 (UTC) Read more: https://help.piexgo.com/hc/en-us/articles/360034737672 halloween cos piexgo btc bnb