Sumitomo Riko Co. Ltd. (TYO:5191) recently announced that it has started to introduce carbon-neutral city gas supplied by Toho Gas Co. Ltd. (TYO:9533) to its facilities earlier this month. This comes as Sumitomo Riko’s first such initiative, with the company aiming to help bring about a sustainable society through the adoption of cleaner energy. The city gas introduced here sees...