The country is also struggling to make payments for imports of essentials such as fuel and medicines and enforcing nationwide power cuts due to a lack of fuel for power generation.
"We believe our ultimate goal is to solve the problem but there may be different ways to do so," Qi said in response to questions on possible restructuring of the Chinese loans.
China is Sri Lanka's fourth biggest lender, behind international financial markets, the Asian Development Bank (ADB) and Japan.
Over the last decade China has lent Sri Lanka more than $5 billion for the construction of highways, ports, an airport and a coal power plant. But critics say the funds were used for white elephant projects with low returns, which China has denied.