| 1816 | 120 Dollars were donated in the name of the “Penang Tua Sai Yah Public Fund” to the home village in China for the restoration of the Cheng Soon Keong. |
| 1835 | 528 Dollars were collected among the 102 clansmen to establish the Ee Kok Tong. |
| 1850 | Purchased the present premise. |
| 1851 | Converted the local bungalow into the clanhouse and named it as Leong San Tong. |
| 1860~1867 | Khoo Thean Teik became the leader of Kean Teik Tong. |
| 1863~1867 | Collected donation from each branch to update The Genealogy of the Sin Kang Khoo and Chan Clans. |
| 1867 | The alliance of the Kean Teik Tong (the Tua Pek Kong Hoey) and the Red Flag fought against the alliance of the Ghee Hin Kongsi and the White Flag in the Penang Riot which lasted for ten days (3/8~14/8). |
| 1868 | Khoo Thean Teik was arrested and sentenced to death but was released seven years later. |
| 1881 | Together with the Cheah Kongsi and the Yeoh Kongsi they formed the Sam Quaye Tong. |
| 1884 | Toon Boon Tong Khoo Kongsi was founded. |
| 1894 | Spent Ten Thousand Dollars for the rebuilding of Leong San Tong. |
| 1901 | The completed new building was razed by fire on Chinese New Year’s Eve. |
| 1902 | Launched a four-year project to rebuild Leong San Tong. |
| 1904 | The emergence of English-educated trustees. |
| 1906 | The completion of the present Leong San Tong. |
| 1907 | The clan school, the “Two-Grade Elementary School of the Khoo Clan,” was set up in Leong San Tong. |
| 1909 | The Self-Protecting Society of the Khoo Clan was founded. |
| 1910 | The school borrowed classrooms from Chung Hwa Confucian School to conduct classes. |
| 1914 | The school moved to Nos. 89, 91, 93 and 95 Victoria Street and adopted the new name, Sin Kang School. |
| 1914 | Khoo Heng Kok graduated in law from Gray’s Inn, University of London. He was the first Khoo graduate from an overseas university. |
| 1917/1919 | The existing leadership system was abolished and a board consisting of 24 trustees was formed. |
| 1920 | Bought the 379-acre Thean Teik Estate from the descendant of Khoo Thean Teik and allocated 17 acres of it for the clan cemetery. |
| 1926 | Refurbishing of Leong San Tong. |
| 1941 | The Pacific War. Khoo Kongsi and Sin Kang School stopped operating during the Japanese Occupation. |
| 1953 | New building of Sin Kang School was built in Thean Teik Estate. |
| 1954 | Sin Kang School was opened to non-Khoo students. |
| 1955 | Leong San Tong Khoo Kongsi was registered as an association. A committee was set up for the restoration of Leong San Tong. |
| 1956 | Sin Kang Building was constructed at Weld Quay. |
| 1958 | Sin Kang School was nationalised. |
| 1959 | The first restoration celebration of Leong San Tong. |
| 1965 | Resumed the allocation of scholarship to clan children. |
| 1969 | Termination of the quasi-banking service. |
| 1976 | Changed from a registered Society to incorporation of “Trustees of Leong San Tong Khoo Kongsi (Penang) Registered.” |
| 1983 | Joint venture agreement signed between Trustees of Leong San Tong Khoo Kongsi (Penang) Registered and Perumahan Falim (Malaysia) Sdn. Bhd. to develop Thean Teik Estate. |
| 1987 | Repair of the roof of Leong San Tong. |
| 1993 | Demolished the old building of Sin Kang School and replaced it with a three-storey block. |
| 1995~1997 | Donated a sum of RM2.5 million for the rebuilding of the Cheng Soon Keong in Sin Aun, China. |
| 1996 | Sin Kang Building at Weld Quay was demolished and rebuilt as a ten-storey block. |
| 1996~1997 | Repair of the Opera Stage. |
| 1997~1999 | Diversification of Kongsi’s investment’s into Estates Management. |
| 1999 | A columbarium complex was set up beside the Sin Kang Khoo Clan Cemetery. |
| 1999~2001 | Second major restoration of Leong San Tong, costing more than RM4.2 million. |