Asian black bear
Biologically and morphologically, Asiatic black bears represent the beginning of the arboreal specializations attained by sloth bears and sun bears. Asiatic black bears have karyotypes nearly identical to those of the five other ursine bears, and, as is typical in the genus, they have 74 chromosomes. From an evolutionary perspective, Asiatic black bears are the least changed of Old World bears, with certain scientists arguing that it is likely that all other lineages of ursine bear stem from this species. Scientists have proposed that Asiatic black bears are either a surviving, albeit modified, form of "Ursus etruscus", specifically the early, small variety of the Middle Villafranchian (Upper Pliocene to Lower Pleistocene) or a larger form of "Ursus minimus", an extinct species that arose 4,000,000 years ago. With the exception of the age of the bones, it is often difficult to distinguish the remains of "Ursus minimus" with those of modern Asiatic black bears.
South East Asian Zoos Association
The Convention on International Trade of Endangered species CITES 
regulates all animal trade, rescue and reintroduction into the wild on the global level. However many countries in Southeast Asia view this agreement as a secondary concern. Most policies in Southeast Asia focus on the conservation of entire ecosystems and little on specific species that are endangered. Because Southeast Asia nations lack the resources to support both imperatives, SEAZA has a hard time enforcing the regulations of CITES prohibiting exhibiting some animals illegally and controlling the exportation of native species such as sun bears. 
Due to SEAZA’s inability to regulate some species, many private internationally conservations and organizations have stepped in for the protection and preservation of specific species such as Malaysian sun bear. The Ho Chi Minh City Zoo has a partnership with the Cologne Zoo in Germany. The Cologne Zoo works with SEAZA to conserve insect and reptile species, as well as working with Malaysia to rehabilitate the Malaysian sun bear species. In fact the Malaysian sun bear studbook is at the Cologne Zoo.