1.Amazon, Yes Bank, Infosys and 25 other firms respond to Tea Board's EoI for blockchain use Tea Board deputy chairman Arun Kr Ray said that this exercise is required for long-term sustainability of the industry as costs are rising and prices of tea have been flat at auctions PTI Last Updated: December 1, 2019 | 14:47 IST MORE FROM THE AUTHOR RBI likely to slash interest rates for 6th time on December 5 to support growth Auto Slowdown: Honda Cars India domestic sales fall 50% to 6,459 in November Corporate bigwigs Amazon, Infosys and Yes Bank are among the 28 companies which have responded to an expression of interest (EoI), floated by Tea Board, for using blockchain and allied technologies to determine the traceability of tea, an official said. Tea Board deputy chairman Arun Kr Ray said that this exercise is required for long-term sustainability of the industry as costs are rising and prices of tea have been flat at auctions