City Diary

THE following business news is expected tomorrow:

• Balfour Beatty, the UK's biggest construction firm, is expected to issue a trading update, which will provide an indication of the continued effects of the recession on the constriction industry.

• British Airways is set to release the latest traffic figures. The company is currently involved in negotiations with unions to avert a possible summer strike.

• Tesco is to hold its annual general meeting, with the Unite union expected to table a resolution calling for the company to take action to end the exploitation of workers.