Inpex, Chiyoda and Metawater Team up to Roll Out Innovative Produced Water Treatment Technology Oct. 30, 2018 Inpex Corp. (TYO:1605), Chiyoda Corp. (TYO:6366) and Metawater Co. Ltd. (TYO:9551) have partnered to jointly conduct demonstration tests on an…... Please subscribe to read the full story. Subscribe Free Trial