codelco also sets the end of the year as a negotiation target! Look here:
https://www.latercera.com/pulso/noticia/maximo-pacheco-afirma-que-chile-tiene-una-posicion-privilegiada-en-el-litio-y-aclaro-que-codelco-no-esta-a-la-venta/ATBKTXUSFNGITH56JSTYPX27UU/