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The Danish start-up Unibio, which ferments methane into proteins, has secured $70 million from Saudi Industrial Investment Group. Unibio will use the money to scale up production. The firm claims that its technology, which uses a continuous-harvesting loop system, can improve global food security because it does not require the use of arable land and consumes little water. Calysta, which has a similar technology, plans to build a plant producing 100,000 metric tons of protein per year in Saudi Arabia.
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