UroCoin URO is a Proof of Work cryptocurrency based on the X11 algorithm. The primary focus of the team behind Uro is to try and provide a means for an efficient international trade of Urea. The coin has a block time of 3 minutes, after that it retargets using a safe gravity well. URO was never premined and has a transaction fee of 0.1%. It was released back in June 2014, and the total coin supply was 1 million URO in the first six months and then 10% growth per annum, assuming the projected growth rate of the global Urea market is achieved. The article will be further updated in case of additional information about UroCoin.