Ivory is a white hard object. The main component of dentin, and bones similar composition. Mammals, African elephants and mammoth fangs in the narrow sense of the word, but also broadsprings or teeth of animals such as hippos, wild boars, walruses, and whales.
Ivory in ancient times is a valuable material used to make tooth carving, dentures, fans, dice and so on. Modern used to make decorations or appliances, such as tooth carving, billiards, dice, piano keys, mahjong, buttons and so on. After the advent of plastic, Ivory replaced many areas, but because of the rare ivory, some luxury still use ivory. Ivory material moist and delicate, special color, as a high-end jewelry has a long history, the market effect of the elephant on the verge of extinction.
In order to protect elephants from killing, plenipotentiaries from 21 countries were mandated in 1973 to sign the Convention on International Trade in Endangered Species of Wild Fauna and Flora, which strictly restricts the trade in ivory and which China acceded to in 1981. However, as ivory trade is a very important source of income for some countries in Africa and the traditional culture of tooth-ivory is also passed, the Convention approved Japan in 2008 to become a legitimate ivory importing country. China has temporarily banned ivory trade in order to expand its ban on ivory products. On March 20, 2016, the ban on the import and export of legal ivory was banned on December 31, 2019.(
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