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1990

The Canadian Overseas College was opened.

1992

Canadian Overseas College changed its name to the Canadian International School.

1993

CIS opened the elementary school at the Toh Tuck Campus.

2001

Students in Grades 9 to 12 were moved to the Bukit Tinggi campus.

2002

CIS offers International Baccalaureate (IB) Diploma

2003

Offer the International Baccalaureate Middle Years Programme (IB MYP).

2005

Offer the International Baccalaureate Primary Years Programme (IB PYP).

2006

The Bukit Tinggi campus became the Middle School campus.

2006

1993 High School (Grades 9 to 12) was moved to Kampong Bahru.

2007

CIS opened the Tanjong Katong campus.

2010

High School community from Kampong Bahru amalgamated to the Jurong East interim campus.

2011

CIS opens the new state-of-the-art Lakeside campus.

2012

CIS received the 4 year EduTrust certification.

2013

The Canadian International School is fully accredited

2014

Bilingual Chinese-English programme is launched.