At the signing ceremony, Blandina Nyoni, permanent secretary of the Tanzanian Ministry of Health and Social Welfare, praised China as a long-term partner for supporting the country's medical service since 1968. "China assisted Tanzania with medical equipment and training as well as the treatment of HIV/AIDS patients via traditional Chinese medicine," she was quoted by Xinhua as saying, adding the Tanzanian people will benefit from the project as they will no longer need to go abroad to receive the surgery in the future. China has been showing its enormous interest in doing business in Africa in recent years, with obsession especially in energy, manufacturing and construction. China's top construction companies, including Beijing-based China State Construction Engineering Corp and Shanghai-based Shanghai Construction Group, have all presented themselves in African countries like Tanzania, Angola and Kenya, for projects like infrastructure construction and real estate development. In June, Lanzhou city-based Gansu Natural Energy Research Institute signed a deal with the Kenyan government to develop solar energy market in the country. However, concerns over ethics are growing with the businesses. For example, the mistreatment from Chinese bosses at the workplace, and the weapons sold to Sudan and Zimbabwe in the past which helped the dictatorship. More details about Sino-Africa relationship are revealed in the new book "China Safari: On the Trail of Beijing’s Expansion in Africa" by two French journalists Serge Michel and Michel Beuret.