AREQUIPA, Sept 25 (Reuters) - Investment in Peru's

Falchani lithium project has increased by 22% to $847 million

and is in the process of restarting after the resolution of a

legal dispute over its concessions, an executive from Macusani

Yellowcake, a unit of Canada's American Lithium Corp ( AMLIF ),

said on Thursday.

Ulises Solis, general manager of Macusani Yellowcake, told

Reuters the updated investment includes plans to build a

refinery at the project site in the Andean region of Puno, in

southeastern Peru.