SEOUL (REUTERS) - South Korea's unionised truckers drove a strong bargain with their largely peaceful strike action proving effective without antagonising a public largely unsympathetic towards unions after years of militant action.

But the group of ageing drivers are often seen as outliers in the country's combative and politicised industrial landscape and their success may not be a harbinger of any wider labour market peace, experts say.

The Cargo Truckers Solidarity is not a recognised union, a reason the government cited initially for its reluctance to sit down to negotiate over demands for minimum freight rates and subsidies to offset soaring fuel prices.

Still, in just eight days of a walk-out, the truckers managed to hit key industrial hubs and seaports, crippling the movement of finished cars, steel and petrochemical products.

While the strike cost Asia's fourth-largest economy more than US$1.2 billion (S$1.7 billion) in lost production and failed deliveries, the truckers avoided blocking roads or holding violent rallies that might have angered a public weary of demands by unionists who are better compensated than non-union peers and small business owners.

"The labour came to learn that physical conflict was not the answer, and so a gentler strike is becoming a standard practice," said Mr Kim Dong-won, a management professor at Korea University. "The union has to look at public opinion, too."

Chung-Ang University professor Lee Byoung-Hoon, who specialises in work and labour relations said the truckers have learned to be effective through previous strikes.

"They have learned that opportunity cost of strikes could be colossal, leading to arrest of union leadership, financial damages union members have to suffer," he said.

Militant history

Thousands of truckers headed back on the roads on Wednesday (June 15) after the union and the government reached a late-night agreement to end an eight-day strike. That was in stark contrast to the country's history of often violent industrial disputes, characterised by street clashes between police in heavy riot gear and militant union members blockading industrial sites.

There was no independent opinion poll published on the strike, which started on June 7 over demands that included an extension of a minimum fare system. But local media has been largely neutral toward the dispute.

With diesel prices rising 40 per cent year-to-date to a record high, truckers' demands for higher pay appeared to meet with more public sympathy than they might have in the past.

The peaceful resolution means South Korea's new conservative president has escaped his first major economic challenge largely unscathed.

"As a former prosecutor general, President Yoon Suk-yeol has emphasised the rule of law, and by that, he is sending a message that he will not crack down on strikes as long as they don't violate the law," said Mr Lim Tae-jun, a police science professor at Dongguk University.

The Cargo Truckers Solidarity also managed to avoid public criticism for being political as its powerful umbrella group, the Korean Confederation of Trade Unions, stayed away from the dispute.

No big shift

But experts say it does not signal a fundamental shift away from the politicised and still militant elements in South Korea's industrial scene.

Several big-ticket reform plans have been proposed by Mr Yoon, including reforming the National Pension System, employment regulations and other pro-business agenda.

"With unresolved labour issues and the government's rather strong stance towards unions, conflicts between unions and the Yoon administration would likely escalate, or set to escalate as time pass, because now that unions have the 'proper' environment for strikes and demonstrations," labour law specialist Park Ji-soon at Korea University's School of Law said.

Unions are likely gearing up for a fight given Mr Yoon's agenda, said Mr Yoon Tae-gon, political analyst running consulting company The Moa. "And it's going to be all the more so as we are living in a time of difficulty economically."