 VANCOUVER, British Columbia--BUSINESS WIRE--DeepGreen Metals Inc., which is expected to merge with Sustainable Opportunities Acquisition Corporation NYSE: SOAC and be renamed TMC the metals company Inc. The Metals Company, today announced the mobilization of its next research campaign, Environmental Expedition 4E, which comes on the heels of the successful completion of Environmental Expedition 5D, which continued research on deep-sea food chains, biodiversity, geochemistry, and nutrien 