Top officials from both sides of the border, including senior central government planners, will meet today in Beijing to lay the groundwork for co-ordinating future development projects in the Pearl River Delta. Chief Secretary Donald Tsang Yam-kuen, who is leading the Hong Kong delegation on a two-day visit, said yesterday that better co-operation was essential to avoid wasting resources on infrastructure projects in the context of growing trade in the delta region. That meant considering development in the next 20 to 30 years, said Mr Tsang after giving a speech at an international conference on money-laundering and terrorist financing at the Convention and Exhibition Centre. 'Because Hong Kong has invested so much in the Pearl River Delta, we want different [mainland Government] units to co-ordinate different infrastructure projects so that our investments would yield the results we hope for,' he said. 'Because many large-scale projects [on the mainland side] require approval from the central Government, any co-ordination effort must involve Hong Kong, Guangdong province and the central Government.' State Development Planning Commission vice-chairman Zhang Guobao will lead the mainland delegation in today's meeting. Mr Tsang said he would explain Hong Kong's development plans in the next 20 to 30 years and hoped to be informed about similar projects on the mainland. Chief Executive Tung Chee-hwa yesterday also said better cross-border co-ordination would avoid wasting resources.