The boss of JD Wetherspoon has said the pub chain could miss profit expectations because of rising costs, in the latest sign the UK hospitality industry is buckling under the pressure of higher energy, food, labour and tax bills. The company’s chair, Tim Martin, told investors on Wednesday: “As many hospitality operators, including Wetherspoon, have reported, there have been substantial increases in costs.” It is the third profit warning this year from the company, which operates about 800 pubs across the UK and Ireland. Investors had already been expecting a drop in pre-tax profit to £73m, compared with £81m last year. Pubs, restaurants and hotels have said rising costs are making it harder to make a profit. The industry is adjusting to a rise in the minimum wage and business rates, which came into effect at the start of April. Martin has previously said increases in national insurance contributions and wages would cost the business about £60m a year. JD Wetherspoon chair Tim Martin, pictured in 2020.…