The Chamber says the industry has been the backbone of the country's development since 1975, contributing immensely to the development of the nation's human resources, economy, infrastructure, and improving thousands of communities' livelihoods and living standards.
"In the decades that have followed, mining and petroleum companies have worked closely with the government to deliver an impressive record of successful exploration that has produced world-class projects and established PNG in the top 10 gold producers in the world and a significant producer of LNG," the Chamber said.
Chamber president Gerea Aopi said he was proud of the resource industry's contribution to nation building.
"The resource industry has invested in developing PNG's economy so it can compete and thrive on a global level," Aopi said.
"We are extremely optimistic about the expansion of existing projects and the development of new ventures which will deliver the country further economic growth."
Along with serving as the backbone of the PNG economy for many years, the mining and petroleum industry has invested millions of kina into providing local communities with access to health centres, schools and roads which have opened up a world of opportunities for thousands of men, women and children in PNG.
During the February earthquake which ravaged parts of the country's Highlands, and left thousands of people and communities displaced and devastated, the resource companies supported the PNG government by providing substantial relief assistance to the recovery efforts.
"The resources industry is committed to supporting local communities under any circumstances with the aim of leaving a positive, lasting footprint," Aopi said.
"Our community programs are focused on delivering tangible benefits like better health, education and infrastructure that improve the day-to-day lives of local communities.
"With the support of the government and the spirit of the people of PNG, we believe the sky is the limit for this great nation. Congratulations, Papua New Guinea on our 43 years of Independence, and best wishes for many more years of prosperity and good fortune."