As of Friday, non-mainland visitors reached 960,000 this month, or almost 30 percent of the total.
Writing on his weekly blog, Chan also said hotel occupancy at popular areas was near 90 percent, while the retail sector also said the increased foot traffic helped their business.
Hong Kong has hosted more than 10 major events this month, including snooker’s World Grand Prix, the Rugby Sevens and the Art Basel art fair.
Chan wrote in his blog that when he spoke to visitors and exhibitors at the Art Basel, he said more people will do business in Hong Kong apart from enjoying art.
The financial secretary also said the new Kai Tak Sports Arena has provided a larger venue and finer facilities for events such as the Rugby Sevens.
Attendance to the Sevens is expected to reach 140,000 from Friday to Sunday, and all hospitality boxes have been sold out early.
“Many business representatives attending financial events in Hong Kong this week told me that they look forward to watching matches and participating in other cultural events to experience the vibrancy of the city, in addition to having business meetings,” he wrote.
Chan also said the administration will continue to promote its mega-events economy to attract more high-end business travellers to the city.
He added that the government will encourage and support businesses to develop more special products and services, to make Hong Kong a prosperous and enjoyable place.