Sojitz Corporation has taken an equity stake in US biomethane producer Fidem Energy through Sojitz Corporation of America, making Fidem an equity-method affiliate. Fidem already operates a biomethane production facility in Tennessee and holds additional development rights across the southeastern US. The deal gives Sojitz immediate exposure to US renewable gas production and a platform to supply biomethane into Japan and other Asian markets.

The key signal is buyer preference for operating, de-risked platforms. That is consistent with broader 2025 energy M&A behavior in the US, where investors have been favoring advanced-stage, operating, and cash-flowing assets over earlier-stage development risk. Enerdatics notes that US buyers increasingly concentrated on de-risked portfolios and operational assets across renewables in 2025.  

For Sojitz, this is not just a clean fuels entry. It is a market-access move. Fidem brings landfill-gas-to-biomethane operating experience, an existing US footprint, and expansion rights. Sojitz brings capital, business development reach, and downstream access into Asian demand centers.

Commercially, that matters because US biomethane demand rose 24% in 2025, while cross-border buyers are looking for supply tied to decarbonisation and energy security. Sojitz is effectively buying platform readiness rather than waiting to build one.

This also signals that international strategics may increasingly treat US biomethane like other energy-transition infrastructure: secure operations first, scale later.

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