Has Sun Li been endorsing Vader for 23 years?

Not due. According to Vader official website, Sun Li's endorsement for Vader did not expire in 2023. On April 9th, 20 18, Vida official Weibo released a set of posters of Sun Li, officially announcing that powerful actor Sun Li became the new brand spokesperson and the first resilience experience officer of Vida brand. As of August 6, 2023, it has not expired.