BEIJING (AFX-ASIA) – Guangdong Electric Power Development Co Ltd (SZA 000539; SZB 200539) said its net profit rose 6% to 1.26 billion yuan in 2003, under Chinese accounting standards, against 1.19 billion yuan in 2002, largely on the back of higher electricity sales and increased capacity. (US$1=8.27 yuan) Core revenue increased 7% to 6.03 billion…