It is a great honor for the Soil Science Society of China (SSSC) to host the 12th International Conference of East and Southeast Asia Federation of Soil Science Societies (ESAFS2015) in Nanjing. We are pleased to invite you to participate in this conference, which will be held from 18-21 September 2015. Food security is a serious problem in the modern world. As one of the most important kinds of food production, more than 90% of the world’s rice is produced and eaten in Asia. The development of soil science in East and Southeast Asia is the basis of food production, and would play an important role for global food security. Thus, it is a glorious task of soil scientists. The international conference ESAFS, which was held for 11 times, has tried effect on different aspects of soil science. By bring soil scientists together, the 12th ESAFS would go on with promoting researches in soil and related sciences. Nanjing, as the capital of ten dynasties, is one of the most famous cities of China for both the long history also the beautiful landscape. SSSC, one of the top-level academic national societies under China Association for Science and Technology, has endeavored to excellence of soil science and developed into an important force in developing the cause of soil science and technology in China. We are ready to welcome 12th ESAFS attendees. We will do our best to make your visit unforgettable. Welcome to join the 12th East and Southeast Asia Federation of Soil Science Societies! We look forward to seeing you in Nanjing!