SENIOR Chinese official Lu Ping was full of praise for the Portuguese Government yesterday for its co-operative approach on Macau's transition, in contrast to the snub he delivered to Hong Kong officials during his week-long trip last week. Arriving for a four-day visit, the director of the Hong Kong and Macau Affairs Office said that the friendship and co-operation between Lisbon and Beijing on Macau had produced remarkable results. Talks with Macau Governor-General Vasco Rocha Vieira 'will contribute to increased knowledge and mutual understanding, further stimulating the implementation of the Sino-Portuguese Joint Declaration on the Macau question', Mr Lu said. He said the Portuguese-ruled enclave, due to be handed back to China in 1999, had enjoyed political stability, economic growth and its 500,000 residents had lived in peace and harmony. 'The friendly co-operation between China and Portugal will continuously develop and is expected to be further strengthened following this visit,' Mr Lu said. He held an extended session with the Macau Governor in the afternoon. Originally scheduled to last for 21/2 hours, the meeting lasted four. According to the official Xinhua (New China News Agency) office, Mr Lu said work should speed up on the localisation of civil servants and the law. Use of Chinese as the official language should be strengthened, Mr Lu was quoted as saying.