Voluntary carbon![](https://cdn.prod.website-files.com/5eb043e2f82cb06d7f38e7d7/6641ce6b370ce83349e204e4_Website%20VCM%20(1).png)
GX voluntary carbon indexes module establishes clearer links between carbon credit quality and price.
SAF![General Index, Sustainable Aviation Fuel](https://cdn.prod.website-files.com/5eb043e2f82cb06d7f38e7d7/647f1e8c23b0d34b9e9a1911_SAF%20Tile.jpg)
Prices constructed using production cost-based models, incorporating actual renewable and energy feedstocks supplied to the HEFA-SPK (Hydrotreated Esters and Fatty Acids-Synthesized Paraffinic Kerosene) pathway.
Biofuels![General Index, US Crude](https://cdn.prod.website-files.com/5eb043e2f82cb06d7f38e7d7/659d30f9e3e919c334ea6e8d_Biofuels.png)
The General Index European Biofuels module provides price visibility for a range of biofuels markets.
Hydrogen![General Index, US Crude](https://cdn.prod.website-files.com/5eb043e2f82cb06d7f38e7d7/647f1c94a0d7c5ba825f9542_Hydrogen%20Tile.jpg)
General Index hydrogen price data provides insight into three of the world’s key energy pricing hubs: Northwest Europe, Asia and North America.
Marine carbon![General Index, Global Marine Carbon](https://cdn.prod.website-files.com/5eb043e2f82cb06d7f38e7d7/64411f0bdd39554635da29f1_Global%20Marine%20Carbon%20Link.jpg)
Robust, consistent, data-driven benchmarks for monitoring vessels' CO2 emissions and their associated costs across various classes and routes.