From 2015 to 2019, facing the increased demand for cooperation with international charity organizations and the influence of advanced multi-media technologies, MBL entered the third phase of learning and development. We updated the website and expanded MBL’s multimedia platform; furthered in-person interactions with adoption agencies and families around the world; conducted in-depth research on the current situation of left-behind children in China and provided more funds to support the B4K program; improved the training for the leaders of volunteer groups to provide opportunities for future MBL leaders to engage in international cultural exchanges.

During this period, MBL’s London team organized a number of study exchanges between Chinese and Western students with the Volunteer Centre, and various East-West cultural exchange events with charity organizations in many countries, including the UK, the US, Australia, New Zealand, and Norway. A number of primary schools in China were invited to participate in the British Literature Festival. Chinese schoolchildren folded thousands of boats using the map of China and wrote their own secret messages for volunteers to bring to the UK. A British artist decorated a theater space with an exhibition of these boats that carried Chinese children's dreams and blessings, attracting great attention from the local community and schools. MBL’s Chinese New Year celebrations at the Young V&A became a highlight of the Chinese cultural festivals in London. Many of the activities are adorned by Western families and children, such as Chinese Folk Music and Dance, Chinese Ethnic Minority Children's Costume Show, Peking Opera Face Painting and Calligraphy, Chinese Abacus and Martial Arts, Lion Dance and Wish Making, and Chinese Children’s Painting Contest. With MBL launching more cultural programs, the number of people coming to see and participate in the event increased every year. According to the Young V&A, the number of people who came to the event on the 2019 Chinese New Year was close to 5,000.

Meanwhile, through the bridge of birth and adoption built by MBL, adoption agencies and families from many countries made contact with the cities in China where the children were abandoned. As the adopted Chinese children grew up, more and more of them, under the guidance and help of MBL, had spontaneously set up mutual support groups and established their own forums on the Internet to discuss various topics, including their feelings about being adopted, how to communicate openly with adoptive families about their adoption experiences, how to search for their birth parents in China, and what is it like to face them.

As the B4K project progressed, MBL China Volunteer Center began to cooperate with the Chinese bookstore chain, Belencre, to promote children’s book clubs in cities and call on these schoolchildren to join the B4K campaign. Together, we donated books, school supplies, toys, classroom heating equipment, and much-needed shoes, socks, gloves, and other necessities for the left-behind children in poor areas in Southwest China. Authors from all over the world, Chinese publishers, and primary and secondary schools in China have also donated school supplies to rural primary schools and other relevant organizations in western China.

While MBL was thriving and prospering, the president of MBL, Toby Eady, passed away on Christmas Eve, December 24, 2017, due to cancer. In accordance with his wishes, MBL transported the English desk and chair he once used, as well as the collection of books written by contracted authors in his office to the MBL China Volunteer Center in Nanjing, where they set up the “MBL Toby Eady Library” to commemorate Toby’s contributions to MBL and to the exchange of Chinese and Western cultures.