Lithium play Orocobre, Texas shale junior Sundance Energy and nickel producer Western Areas are among the few resources stocks that feature in UBS's small and micro-cap funds, which are otherwise dominated by digital and healthcare plays. Portfolio manager David Haddad said the emergence of cheaper battery storage and the potential for grid power to be at least partly substituted through solar and batteries felt like "a multi-year theme" that could provide sustained support for lithium, which is used in rechargeable and efficient lithium-ion batteries.