Opal TKN (OPALTKN) started in 2014 and finished in 2016, with a total supply of 15 million coins. The team/founder is hidden, The main reason this coin was listed is desertion.

Opal is structured on a no premine, no ICO, no IPO basis, all funding and expenses are covered by the development team. It is because of this approach we believe we can take Opal to the pinnacle of innovation. We firmly believe in customer and investor feedback and welcome this to further cement Opal's position in real world adoption. Our team are not only dedicated but they make OPAL their passion; having released many updates so far OPAL they keep on contributing to the betterment of the altcoin every single day. Our team has a vision for OPAL and they will not stop until it had been reached.