[5] In 1962, another Wing Chun practitioner named Wong Shun-leung - another student of Yip Man - was opening a school across the street from Wan's home in Kowloon.

[8][9][10] The Hong Kong Police Force, in 1993, invited Wan to be Chief Wing Chun Instructor to the G4 (VIP Protection Unit).

[2] The modifications were designed to maintain a modern, adaptable martial art aimed at providing self-defense against a "committed and real attack", with all of the basic tenets of traditional Wing Chun.

[12] This is done by adhering to five components of a strong body structure - five centerlines, relaxed shoulders, elbows pointing down, flexible wrists, and 135-degree angles.

[14] Wan has several students who have opened schools across the world, including several in Australia, Germany, Denmark, Holland, France, and USA[15] On 19 November 2017, Wan Kam Leung Practical Wing Chun Kung Fu International held the Guinness World Record for teaching the largest martial arts class ever.