"Our businesses continue to face too many barriers of entry which tilted the playing field against the American workers and American growth", Pence said.
Wrapping up the lecture attended by some 70 South Korean and USA business leaders, Pence left through Osan Air Base for Tokyo, where he met with Japanese Prime Minister Shinzo Abe and discussed North Korea's evolving nuclear and missile threats.
Last week, President Trump said he was sending an "armada" to the Korean Peninsula as a show of force.
The deputy United Nations ambassador from North Korea, Kim In Ryong, claims that the United States' actions toward the country have resulted in "a risky situation in which a thermonuclear war may break out at any moment".
Dent said he will be meeting with South Korean officials to talk about the tension in the region and to facilitate the movement of troops located in Seoul who are close to the demilitarized zone deeper south to Camp Humphreys and out of what Dent calls the line of fire.
Pence is on a 10-day Asia-Pacific tour that has been dominated by the North Korea issue.
White House officials said the economic meetings in Tokyo, with Deputy Prime Minister Taro Aso and other officials, are meant to forge a framework for future discussions after the US withdrew from a Pacific Rim trade pact.
It was Pence's second stop on the trip, which will later take him to Australia and Indonesia.
The official said Tuesday that Japan still hopes to bring the USA back into a multilateral framework such as the Trans-Pacific Partnership.
"The U.S. has been clear that we want to resolve this issue through the peaceful denuclearization of the Korean Peninsula", she added. The Nimitz-class aircraft carrier is undergoing scheduled maintenance at its home port.
He said that the dialogue could lead to formal talks on a U.S. -Japan trade agreement, but that he would leave that decision to the future.
"For now, both sides seem eager to downplay potential for conflict, with Aso repeatedly saying that trade friction has been vanquished in a 'new era of cooperation'".
In response to a question about whether Chinese officials would help convince North Korean leader Kim Jong Un to end his ballistic missile and nuclear testing, the vice president said Trump and Chinese President Xi Jinping had a frank discussion about a broad range of global issues, including the denuclearization of the Korean Peninsula when Xi visited Trump earlier this month in Florida.
"The President is determined to keep our promise and I'm very confident that in the days ahead, we're going to see the Congress come together and we're going to take that important first step to repeal and replace Obamacare with the kind of health care plan President Trump has envisioned", he told CNN's Dana Bash in an exclusive interview Wednesday.