Sumitomo Rubber Industries Ltd. (TYO:5110) has announced that it has signed on to participate in the Sustainable Natural Rubber Initiative (SNR-i). Established by the International Rubber Study Group (IRSG) with the aim of ensuring the sustainability of natural rubber (NR) as a resource, SNR-i will form part of Sumitomo Rubber’s corporate social responsibilities (CSR) and its efforts toward preserving the…