President Xi Jinping has extended his greetings to the opening of the Eco Forum Global Annual Conference Guiyang 2018, which opened on Saturday in the capital of southwestern China's Gui-zhou province.

"Ecological conservation concerns the future of the mankind, and it's the common goal of all nations to build a green home," Xi said in a congratulatory letter to the forum.

"China highly values ecological and environmental protection," the president said. "Guided by the conviction that clear waters and lush mountains are invaluable assets, the country advocates harmonious co-existence between humans and nature, and sticks to the path of green and sustainable development."

Xi said he believed that the annual conference — this year themed "Embracing a new era of eco-civilization: green development with high priority to ecology" — would help all parties strengthen consensus and cooperation for the development of global ecological civilization.