All the talk in recent weeks about the threat to Hong Kong's convention and exhibition business has centred on Macau, but yesterday the chief secretary had a first-hand look at the threat posed by Guangdong. Facilities in the province posed a challenge to Hong Kong's quest to be the region's hub for conventions and exhibitions, Henry Tang Ying-yen said. Mr Tang toured venues in Guangzhou, and said he was impressed by the huge potential for development of the industry in the provincial capital. He noted that the 330,000 square metres of exhibition space at the Guangzhou International Convention and Exhibition Centre at Pazhou - used for the twice-yearly Chinese Commodities Export Fair, formerly the Canton Fair - provided more space than the Convention and Exhibition Centre in Wan Chai and the AsiaWorld-Expo at the airport combined. Mr Tang said: 'In the development of Hong Kong's exhibition industry, we need to continue moving ahead and consolidating. Otherwise, we will be facing very, very big challenges.' Business groups have questioned Hong Kong's competitiveness in the face of the rapid growth in exhibition space in Macau. The Trade Development Council is studying expanding the Convention and Exhibition Centre. One option is to take over land occupied by the Wan Chai bus terminus and Wan Chai Sports Ground.