At the invitation of Tianzhushan UNESCO Global Geopark, Mr. Soojae LEE from South Korea, a member of UNESCO Global Geoparks Council, and Mr. Nick Powe, chairman of English Riviera UNESCO Global Geopark visited Tianzhushan Geopark on April 12-13. During their visit, Tianzhushan UGGp and English Riviera UGGp signed a sister geopark agreement. Both geoparks agreed to work together to strengthen cooperation in the conservation, management, tourism marketing and sustainable development of their geological heritage, and work together to promote mutual improvement and effective promotion.

Mr. Soojae LEE and Mr. Nick Powe successively visited the northern granite landform area of Tianzhushan Geopark, Valley Stream cultural park, the southern scientific investigation area including fossil sites, Tianzhushan Museum under construction, and partners of Tianzhushan geopark, including Yezhai Middle School, Ancient Doumu Pottery, a photovoltaic power station in Qiuzhi Village, Wolong Villa and Wanghu Garden. The two experts thought highly of the management and infrastructure of Tianzhushan geopark, fully affirmed the work on the conservation of geoheritage, community involvement, science popularization in schools and the development of geotourism, in addition, they put forward many constructive suggestions for the upcoming revalidation of Tianzhushan Geopark.

The English Riviera UNESCO Global Geopark is situated within the stunning, rolling hills on the south coast of Devon, southern England. Unique in Western Europe, the English Riviera UNESCO Global Geopark is geologically renowned for its 350-400 million year old Marine Devonian limestones of great historical importance. The rich faunas yielded by these rocks were used, in part, to characterize the original Devonian System of the pioneering geologists Sedgwick and Murchison which was named after Devon the county within which the Geopark is situated. In addition, excellent exposures of classic desert sandstone and breccia in the 300-250 million years old Permian "Red Bed" sequences are recorded. The limestones themselves also include important Quaternary karstic features such as Kents Cavern. Pengelly's excavations of the caves in the nineteenth century influenced public opinion worldwide as to the antiquity of man.