Henry Jefferson Morco, a grade 6 student won the gold medal while 2 more students won bronze medals in the International Youth Mathematics Contest for elementary and high school in Hong Kong last August 3, 2007.

Henry won the gold medal in the Hong Kong Elementary Mathematics International Competition (HKEMIC). 2 CKSC bronze medalists in the high school counterpart, Asia Inter-Cities Teenagers Mathematics Olympiad (AITMO) were Dann Julius Tan, 3rd year, and Aldric Cristoval Reyes, a sophomore.

Other schools that joined the Philippine delegation were: Xavier School, Saint Paul College-Pasig, Quezon City Science High School, Zamboanga Chung Hua High School, Saint Jude Catholic School, Jubilee Christian Academy, Philippine Cultural High School (Annex), and Pangasinan Universal Institute,