Yes, familiar with MOF and carbon absorption tanks for CNG (not LNG). What do you want to know about it? Allows tank fill at 500 psi (pipeline pressure) without need of added compression. Also allows for lighter tank and odd space filling tanks, given lower pressure.
One thing to note...ANG tanks may be the future, and but that future may still be a decade or more out until they make it to the road as production products in any number that moves the needle. Relative price of an AGN tank is still prohibitive vs say the Type IV CNG tanks (by for example by Quantum ($QTWW), which are on the market today and they can't make them fast enough.)
But in our opinion, given tanks are the source of many of the drawbacks of CNG, including the incremental upfront costs, this segment of CNG parts is ripe for innovation.