Today: Dellis Cay property exhibition. Mandarin Oriental. Monday, May 19: American Chamber of Commerce luncheon: 'How environmental law affects the environment'. Club Lusitano. Tuesday, May 20: British Chamber of Commerce breakfast: 'China and America - A time of reckoning'. Hong Kong Retirement Schemes Association luncheon: 'Retirement and benefits planning for international assignees'. Hong Kong Club. Wednesday, May 21: Hong Kong General Chamber of Commerce luncheon: 'WTO Doha round - The last mile?' United Centre. Thursday, May 22: British Chamber of Commerce breakfast briefing: 'An overview of the NEC contract'. Hong Kong Institute of Arbitrators seminar: 'The role of the architect in construction (and subsequently in arbitration)'. Aedas.