According to circular Caishui  No. 33, issued by the Ministry of Finance on April 4, 2018, the following new rules will apply effective May 1, 2018
The threshold to become ordinary VAT payer will be unified to annual revenue of 5 million CNY.
Companies already registered as ordinary taxpayers with annual revenue below this threshold can become small-scale taxpayers. The application of transfer-back to small-scale taxpayer could be filed before 31 December 2018.