The phrase "maintain close contact" is correct and commonly used in written English.
It is typically used to describe the act of staying in touch or regularly communicating with someone. Example: "It is important to maintain close contact with your team members in order to ensure a successful project outcome." "I will make sure to maintain close contact with you throughout my trip so we can stay updated on any changes."
"Our embassy in Pyongyang is monitoring the situation closely and we will continue to maintain close contact with our allies on this," a Foreign and Commonwealth Office spokesman said.
Japan is closely watching the transactions and will seek to maintain close contact with Chinese authorities on the issue, Vice Finance Minister Naoki Minezaki told lawmakers in Tokyo.
Israeli military officials say they maintain close contact with their Egyptian counterparts.
[C4.] Booking Online for Safety's Sake Online booking on a corporate intranet system can provide a network that helps travelers maintain close contact for security reasons.
Although the strike force is an administrative - not an investigatative - body, it will maintain close contact with the F.B.I. and other Federal law-enforcement agencies, officials said.
And I go back to the peculiar fact that university communities are unusual places, where adults of all ages maintain close contact organized around discussion and debate.
And since they maintain close contacts at the highest levels of their respective governments, their advice and assessments carry weight.
ALEXANDER BROWN: Did you maintain close contacts with the Instrumentation Lab, or with MIT, as a whole, after Intermetrics moved?
Now they have 40 years of experience challenging developers behind them, and maintain close contacts with some of Britain's foremost planning lawyers.
He says he continues to spend 90% of his time working on Jazztel and, as a Spanish resident, will maintain close contacts with the company.
One of the reasons why this result was only found for girls and not for boys may be that daughters maintain closer contact with their mother when she is depressed.
