1. IM (Individual membership): US$30 for 5 years. (In China, members pay CNY￥200).

2. LM (Life membership): US$120 for life. (In China, members pay CNY￥800).

3. OM (Organization membership): US$200 per year. For universities, research and implemental institutions, government agencies, NGOs, societies, associations, international organizations and related companies, etc. Persons belonging to an Organization member will receive the same online products and services as the other two above categories. (In China, members pay CNY￥1300 per year).

4. SM (Student membership): US$5 per year. The valid student certificate should be provided with this form. (In China, members pay CNY￥35 per year).

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