Khoo Si Toon Keng Tong Kongsi 敦敬堂 (GPS: 5.41237, 100.33563), , is one of the lesser known branches of the Khoo clan association. It is located along Beach Street, a short distance from the Malay Street Ghaut junction. The clan association was formed by five Khoo brothers, Cheng Pang, Chneh Pang, Goh Pang, Mooi Pang and Soo Pang, who were the descendants of Kong Teong Kong, who in turn was the 5th generation descendant of Chian Eng Kong, the progenitor of the Khoo clan. Among the most illustrious clansmen from this association include Dato' Seri Khoo Keat Siew, who was the 22nd generation descendant through the Cheng Pang line. Khoo Si Toon Keng Tong Kongsi occupies a shophouse with an ornately decorated façe. As with nearby Boon San Tong Khoo Kongsi, it is an offshoot of the Khoo clan. While the Khoo clans trace their ancestry to a common progenitor established at Leong San Tong, Khoo Si Toon Keng Tong Kongsi was established by a branch of third-generation descendants. Khoo Si Toon Keng Tong Kongsi itself is further split into five branches, based on the five founding brothers, namely Yeoh Teik Tong Khoo Kongsi (Chneh Pang), Seow Tek Tong Khoo Kongsi (Cheng Pang), Sin Teik Tong Khoo Kongsi (Goh Pang), Swee Teik Tong Khoo Kongsi (Mooi Pang) and Swee Thong Tong Khoo Kongsi (Soo Pang). Each trustees are drawn from each of the five branches.

Sembahyang Hari Pertama Bulan Lunar & Sembahyang Hari Kelima Belas Bulan Lunar

Hari ke-15 Bulan ke-8 Cina (Kek Bulan) Hari ke-29 Bulan ke-8 Cina (Ulang Tahun Kong Teong Kong) Pesta Tun Check Malam Tahun Baru Cina Hari ke-3 Bulan ke-3 Cina Hari ke-5 Bulan ke-5 Cina (Pesta Chung) Hari ke-15 Bulan ke-7 Cina (Phor Thor)