Mentioning your certification during a job interview can save the employer money

Zero. You only need to add one extra sentence during the interview; the real challenge is simply speaking up.

Article 8 of the Regulations on Employment of Disabled Persons states: “Employers must ensure that disabled workers account for at least 1.5% of their total workforce; the precise percentage is determined by provincial governments according to local conditions.” Article 9 adds that employers failing to meet this requirement must pay the disability employment levy. Article 8 of the Measures for Collection, Use, and Management of the Disability Employment Levy provides the calculation formula: “Annual levy amount = (Total number of employees in the previous year × mandated disabled‑worker ratio set by the provincial government) − actual number of disabled workers hired × average annual wage of employees in the previous year.” Moreover, Article 16 exempts micro‑enterprises with 20 or fewer employees that have been operating for no more than three years from this levy if they still cannot meet the mandated hiring ratio. Article 36 of the Law on the Protection of Disabled Persons further guarantees tax incentives for employers who meet or exceed the required disabled‑worker ratio, or who concentrate on hiring disabled personnel (these provisions have been in effect nationwide since 1 May 2007).

国务院 (2007). 残疾人就业条例（第八条、第九条）. https://www.gov.cn/zhengce/zhengceku/2008-03/28/content_6646.htm；财政部、国家税务总局、中国残联 (2015). 残疾人就业保障金征收使用管理办法（财税〔2015〕72 号，第六条、第八条、第十六条）. http://www.gov.cn/zhengce/zhengceku/2015-09/15/content_5650063.htm；中华人民共和国残疾人保障法（第三十六条）. https://flk.npc.gov.cn/detail?id=ff8080816f135f46016f1d134c88132b

This advantage does not apply to micro‑enterprises with 20 or fewer employees that have been registered for less than three years; do not rely on it in those cases. The rules governing levy exemptions are updated regularly, so always refer to the latest announcements issued by the Ministry of Finance. Additionally, the requirement to meet the hiring ratio involves genuine employment; merely listing a disabled worker on payroll to claim the exemption is fraudulent and could implicate you as well. For details on eligibility for employment assistance programs and social insurance subsidies, see Section 7, Item 12 (“Employment assistance for disadvantaged individuals”). Information on vocational training subsidies can be found in Section 7, Item 13 (“Vocational training subsidies”). Ultimately, the primary beneficiaries of this arrangement are you, the job applicant.