Lahore, June 26 -- China is ready to work with relevant sides to firmly uphold multilateralism, and oppose unilateralism and protectionism at the upcoming Group of Twenty (G20) summit in Osaka, Japan, said senior officials in Beijing Monday. XI'S SCHEDULE Chinese President Xi Jinping will attend the summit, marking the seventh consecutive time for him to attend the G20 summit. In September 2016, Xi chaired the G20 summit in Hangzhou, the capital city of east China's Zhejiang Province. "It shows that China attaches great importance to G20 cooperation and global economic governance," Assistant Minister of Foreign Affairs Zhang Jun told a press briefing. During the Osaka summit, President Xi will participate in discussions on topics ranging fr...