After signing potash supply deals last month with customers in China for up until June 2019, Israeli fertilizers and minerals producer Israel Chemicals (TASE: ICL : NYSE: ICL ) yesterday signed new framework agreements with customers in China to supply them with potash in 2019-2021. The contracts signed yesterday are renewals of agreements signed three years ago, but Israel Chemicals will now supply a total of three million tons of potash over three years (one million tons a year), 8.1% more than it supplied under the earlier agreements, with an option to increase the quantity by 750,000 tons.