Biomethane & Bio-LNG

Trade Physical Biomethane, Bio-LNG and Certificates Across Global Markets with STX

Biomethane, also known as Renewable Natural Gas (RNG), is a low-carbon substitute for fossil natural gas. It is produced by upgrading biogas from organic waste and plays a key role in decarbonizing hard-to-abate sectors such as industry, transport and heating.

Biomethane enables certificate generation aligned with the EU’s Renewable Energy Directive (RED) framework. Biomethane certificates come in the form of Guarantees of Origin (GoOs), Proof of Sustainability (PoS) and national standards, such as Dena audits. These documents create new revenue streams for biomethane producers through book-and-claim, mass-balanced and physical delivery-based models.

As globally traded commodities, biomethane and bio-LNG provide flexible options for buyers and suppliers to meet regulatory targets, hedge energy use and monetize environmental attributes.

10+ Years of Trusted Experience and Market Development in Biomethane

STX has an unmatched experience of 10+ years as a reliable partner in the biomethane market. Our broad and diversified portfolio of positions across products and outlets is always looking for new reliable partners to jointly develop the biomethane market further with. STX buys and supplies physical biomethane / bio-LNG, certificates and low-carbon fuel solutions across global markets. Our trading desks provide execution certainty, flexible and efficient contract and deal structuring tailored to your needs, deep regulatory and sustainability expertise and access to vast network of counterparties and liquidity across the full value chain.

We structure delivery-based and book-and-claim deals, manage price volatility and monetize co-products, such as, biogenic CO₂. From offtake to credit optimization, from outright supply to indexed sourcing solutions, STX helps unlock value at every step.

Our global covarage

Europe

Buying and supplying physical biomethane and Bio-LNG under RED and EEG frameworks. Access a diverse portfolio across EU and UK schemes including RGGOs, EEG, GEG, GGE, THG, HBE / ERE and RTFO. STX supports both subsidized and unsubsidized markets, certificate trading (GoOs, PoS), and (bankable) offtake structuring for biomethane, RFNBO and PtX development.

North America

Buying and supplying physical RNG with linkage to RIN and Low Carbon Fuel Standard (LCFS) programs. STX enables credit generation, carbon intensity (CI) optimization and structuring of custom transport and compliance contracts across federal and state frameworks.

Rest of World

STX actively evaluates new markets and related products, including in the APAC region. Reach out to explore coverage and unlock new opportunities.

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Why choose STX?

Reliability and deep RNG experience

End-to-End Market Access

Flexible and Efficient Contracting

Holistic Environmental Commodities capabilities

We have been active in this market for 10+ years as a reliable and solution-oriented partner; and with 50+ professionals and regional teams, we bring insight, regulatory fluency and relationship networks across Europe and North America.

We connect producers and buyers across global physical and certificate-based biomethane markets, including book-and-claim and delivery-based models.

From large-scale long-term indexed offtakes to small-scale spot liquidity, we tailor Deals and contracts to our partner’s needs and ensure efficient contracting.

We go beyond molecules, helping optimize feedstocks, monetize bio-LNG and bio-CO₂, and trade related products on biofuels, ETS and transport compliance tickets