Group 1 - The event "Chinese Business Forum" was held in São Paulo, Brazil, focusing on opportunities and challenges faced by Chinese enterprises in Brazilian customs and the regulatory model for federal government railway and highway concessions [1][3] - Zhang Guanghua, President of Bank of China (Brazil) and Chairman of the Chinese Enterprises Association, highlighted the Brazilian government's ongoing "digital customs" reform, which brings policy benefits to Chinese companies [3][4] - The concession model in Brazil requires companies to undertake not only construction tasks but also operation and maintenance, raising the bar for the comprehensive capabilities of enterprises [3][4] Group 2 - The Secretary-General of the Chinese Enterprises Association, Li Dongcheng, emphasized the importance of understanding customs policy benefits, reducing compliance risks, and seizing market opportunities for Chinese companies in Brazil [4] - Felipe Queiroz, Director of the National Land Transportation Agency, encouraged Chinese enterprises to actively participate in upcoming highway and railway bidding projects, highlighting the increasing openness of infrastructure projects to private capital [6] - The Chinese Consulate in São Paulo expressed commitment to facilitating connections for Chinese enterprises and promoting bilateral trade and investment cooperation [6]