[Grvt Adds Support for AVNT, ASTER, EIGEN, and 8 Other Tokens, Maker Fee -0.01%] BlockBeats News, September 24, according to official sources, the decentralized perpetual contract trading platform Grvt announced the addition of LA, AVNT, DOT, ASTER, EIGEN, W, BARD, and NEAR, with a maker fee of -0.01%.