SEOUL, Sept 29 (Reuters) - South Korea and the United

States will meet for their first working group discussions on

visa systems for Korean companies operating in the U.S. on

Tuesday, Seoul's foreign ministry said.

The talks are designed to improve U.S. visa programmes for

South Korean businesses there in the aftermath of a massive raid

that led to the arrests of hundreds of South Korean workers at a

Hyundai Motor ( HYMLF ) car battery facility under

construction in Georgia earlier this month.

Wi Sung-lac, South Korea's top national security adviser,

said on Monday the country would resolve the visa issues as

quickly as possible to create a better environment for Korean

investments in the United States.

South Korean companies have become major investors in the

U.S., building factories that often require highly technical

skill sets that are not easy to find in the United States.

But unlike some countries such as Australia, Canada and

Mexico, South Koreans do not have access to special treaty work

visas.

Instead, workers from South Korean companies have used visa

waiver programmes or temporary visas for some business-related

activities.

"We will focus on making current (visa) systems more clear

and seek to design a new category in addition to that," though

it is hard to know when this will be completed," Wi told a media

briefing on Monday.

"We will try to achieve an outcome as quickly as

possible," he said.

Wi reiterated that South Korea was unable to pay $350

billion in cash for an investment package that U.S. President

Donald Trump suggested as part of a deal to cut tariffs.

Washington had agreed to lower tariffs on imports from South

Korea in return for the investment package, but follow-up

negotiations to hammer out details, including the structure of

the investment package, have stalled.

Visa issues for Korean workers are not necessarily connected

to the ongoing tariff negotiations, but resolving those issues

would help the country's businesses in the U.S., Wi said.