Pricing formula agreed: with pricing for February to June 2019 to be based on the average October to December 2018 lithium carbonate pricing. Pricing formula for July to September 2019 will be based on the average of May to June 2019 lithium carbonate pricing. For October to December 2019, the pricing formula will be referenced from both lithium carbonate and lithium hydroxide prices. If not agreed, the higher of US$880 per dmt or the floating price will apply.