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Using the midpoint of new guidance ranges reported by Base, Kwale's rutile output could increase circa-16%, while ilmenite and zircon outputs could rise nearly 4% and 15% respectively.
The increases come on the back of mining volumes going from 18 million tonnes to 18.7Mt and recoveries moving from 99% to 102% for rutile, 100% to 101% for ilmenite, and 77% to 85% for zircon.
Base moved to its current mining area at Kwale's South Dune in mid-2019 after depleting the Central Dune orebody that underpinned the project's development.
Meanwhile, Base said last month it was concentrating on offtake and funding arrangements ahead of a formal investment decision by September for its big ticket Toliara prospect in Madagascar.
Shares in Base were unchanged at 22.5c in morning trade, capitalising the company at $264 million.
The stock has spent much of the past three years trading between 20c and 30c.
