By ZHENG WANYIN in Lisbon, Portugal and ZHENG YIRAN in Shanghai |

China Daily |

A logo of Fosun, one of China's largest private conglomerates, is seen in Shanghai. PHOTO PROVIDED TO CHINA DAILY

When Portugal's Prime Minister Luis Montenegro became in September the first Portuguese head of government to visit China in nearly a decade, one remark he made in meetings with Chinese leaders cut through the familiar tone of diplomatic exchanges.

Portugal will never forget the invaluable support China provided during its economy's most challenging period, Montenegro said.