PRIME MINISTER, Sir Michael Somare says he's sad the US Secretary of State, Hillary Clinton had to cancel her visit to the country.
Hillary Clinton was due to spend Friday afternoon in Port Moresby before flying to New Zealand then Australia.
But she cancelled the trip to concentrate on the response to the Haiti earthquake disaster.
Sir Michael says a lot of effort went into preparing for Ms Clinton's visit, but he's extended an invitation for her to come again another time.
"And I spoke with Mrs Clinton this morning and she conveyed here sincere apologies. She assured me that she will make another attempt again to call in our region."
Nonetheless Sir Michael earlier on said in a press statement that if Ms Clinton had come this will be the first time for any senior US government official to visit PNG and hold formal meetings with the Heads of Government and State since PNG established diplomatic relations with US in 1975.
He said: "It is important to note also that in recent years our total trade (import/export) with the largest economy in the world, the US has gone from of 619 million Kina in 2004 to a record total trade volume of 2,156 million Kina in 2008.
"Through the establishment of our LNG projects and the recent Foreign Direct Investment of US3 billion Dollars the US is now PNG's second largest trading partner.
"This is a significant achievement for PNG with this high profile visit to the country. We have always been a people that welcome visitors with open arms and I urge everyone to once again ensure that the State Secretary's visit is successful and memorable, said Sir Michael.