​China said Wednesday, May 29, that its door of dialogue with the Philippines to address sea concern remains open, although it must be sincere.

Mao Ning, spokesperson for China's Foreign Ministry, assured Manila that Beijing is open for talks following China's issuance of guidelines that will allow its Coast Guard to detain and interrogate alleged trespassers into waters it claims to be its own.

She said the regulations Beijing made are only aimed at standardizing "the administrative law-enforcement procedures of Coast Guard agencies" and to "better uphold order at sea."

She added that it is consistent with universal practices, and "individuals and entities have no need for concern as long as they have not done anything illicit."

"China’s door of dialogue and communication with the Philippines remains open," Mao said.

"But it’s important to note that dialogue requires sincerity and whatever is agreed in dialogue must be acted upon, rather than talking about the need for dialogue while continuing to make provocations," she said.

Mao then put the blame of the ongoing sea row to the Philippines.

Although China has been repeatedly reported to conduct aggressive actions in the waters, Mao claimed "it is the Philippines, not China, that has escalated the situation and made repeated provocations in the South China Sea."