SEOUL (Reuters) - Samsung Electronics ( SSNLF ) and representatives of its biggest workers' union in South Korea, which has been on a strike, met on Tuesday but the talks ended without results, the union said.

Since earlier this month, the union has been on an indefinite strike over pay and benefits.

The gap between the two sides is too wide to reach any agreement, Lee Hyun-kuk, vice president of the National Samsung Electronics Union whose roughly 30,000 members make up almost a quarter of the company's South Korean workforce, said on a YouTube live broadcast.

Union officials called on the company to bring a fresh offer to the negotiating table by July 29 and plan to hold ultimate talks with the company through July 31, they said.

Analysts have said a drawn-out strike by key personnel will add to challenges for Samsung, the world's biggest memory chipmaker, which is struggling to navigate competition in semiconductors used for artificial intelligence.

Samsung has said the strike has caused no disruption to chip production.