The mainland is on track to meet its 8 per cent gross domestic product growth target, judging by economic data, a senior Bank of China Hong Kong and Macau regional office economist said. The mainland should achieve about 7.5 per cent growth in the first half and 9 per cent in the second, Wang Chunxin said. This assumed fixed asset investment would grow 15 per cent for the whole year. The mainland reported a 12.2 per cent fixed asset investment rise in the first four months, while in April, the figure rose 15.3 per cent year on year. Mr Wang expected the growth to accelerate. The economic growth would be driven by key investments in infrastructure, followed by the housing and vehicle sectors. Exports would slow, however, as the financial crisis in Southeast Asia and regional currency devaluations affected competitiveness. The expansion in the economy should help propel Hong Kong growth, which Mr Wang expected to be about 3.2 per cent this year.