More than 20 cleaning staff, students and teachers at Baptist University petitioned the university's president Ng Ching-fai after the convocation ceremony this week, demanding an increase in wages for the workers. Fung Kai-yuen, protest organiser and spokesman for the Hong Kong Confederation of Trade Union's Cleaning Service Industry Workers Union, said the cleaners, hired through a private firm, were working 10-hour days on a monthly wage of $3,800 at HKBU, 40 per cent less than the salary of cleaners at other Hong Kong universities. 'Their wages are below the average in the market for a cleaner, which is around $5,126,' Mr Fung said. Professor Ng said the university was reviewing the issue. It will put its cleaning services up for tender again in July next year.