Arts Optical (HKG:1120) forecasts it will swing to an attributable loss of between HK$12 million and HK$20 million in the first half from an attributable profit of HK$2.5 million in the year-ago period, according to a Tuesday filing with the Hong Kong bourse.

The optical company attributes the downbeat forecast to the impact of US tariffs against China, as well as higher staffing, promotion and exhibition costs, and bank borrowings, the filing said.

Arts Optical plans to release H1 results by the end of August.

Shares closed 5% lower on Tuesday.