Shares were at HK$1.27 (USD 0.16) in the first few minutes, slightly up on their IPO price of HK$1.26.
But although Hong Kong's recent listings have grabbed headlines, investor confidence has been overshadowed by US-China trade tensions and falling global markets.
China Tower raised USD 6.9 billion after pricing its initial public offering at the low end of the expected range.
Some observers say investors may see China Tower as a safe bet on the country's mobile market because of its government backing.
But others argue the fact it is a state-backed monopoly could limit growth due to lack of competition.
The company said at its IPO launch event in Hong Kong in July that "international companies and giant domestic companies" were among the cornerstone investors.
Hong Kong is seeking to become a destination for major IPOs after being snubbed by Alibaba's overseas listing in 2014.
(This story has not been edited by Business Standard staff and is auto-generated from a syndicated feed.)