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Rise Reforming converts stranded biogas from wastewater plants, farms, and landfills into valuable chemicals like dimethyl ether, methanol, and dimethyl carbonate using modular, containerized technology. The startup recently joined Y Combinator's S26 batch.
Boston Metal raised $75M to scale production of critical metals like niobium and tantalum using its molten oxide electrolysis technology, supporting a Brazilian facility after a cash-flow crisis triggered by an industrial accident.