* US export controls on chips were not discussed at

Beijing meeting

* Greer comments suggest breakthrough on exports of

Nvidia's ( NVDA ) advanced chips far off

* US, China discussed possible cooperation on AI

guardrails - Trump

(Adds Trump comments on AI and H200s in paragraphs 5, 7-9)

By Trevor Hunnicutt

May 15 (Reuters) - U.S. Trade Representative Jamieson

Greer said on Friday that U.S. export controls on semiconductor

chips were not a major topic of discussions with Chinese

officials in Beijing.

The comments suggest a breakthrough on selling Nvidia's ( NVDA ) advanced

H200 chips to China remains far away, despite Nvidia ( NVDA )

CEO Jensen Huang's last-minute invitation to U.S. President

Donald Trump's Beijing trip this week.

"This was not a major topic of discussion at the bilateral

meeting. We did not talk about chip export controls at the

meeting," Greer told Bloomberg TV.

Reuters reported that the U.S. had cleared around 10 Chinese

companies to buy H200s, including Alibaba, Tencent and

Bytedance, but not a single delivery has been made so far. The

Trump administration approved H200 exports to China in December,

and added further conditions in January.

Speaking to reporters on board Air Force One on Friday,

Trump appeared to confirm that China had not approved H200

deliveries "because they chose not to, because they want to try

and develop their own".

Greer added that allowing the H200 imports would be a

"sovereign decision" for China.

Trump also confirmed that both leaders discussed artificial

intelligence, and the possibility of cooperating on AI safety.

"We're leading by a lot, but they're second and they're very

strong, and we talked about possibly working together for

guardrails" to curb potential AI threats, he told reporters,

without elaborating.

Reuters previously reported that few substantive commitments

on the frontier technology would result from the summit, given

both sides' growing AI rivalry and mutual distrust. Pressure to

engage has grown after Claude maker Anthropic's launch of the

powerful Mythos model, which China is excluded from using.

DOMESTIC CHIP PUSH

While Chinese AI firms such as DeepSeek increasingly tout their

reliance on domestic chips, U.S. chip curbs continue to choke

Beijing's push for self-sufficiency just when domestic fabs are

struggling to scale up output.

Computing power shortages have forced many Chinese AI models to

ration user access in recent months but Chinese policymakers are

worried about deepening dependencies on U.S. chips, which they

view as a supply chain vulnerability.

Hawkish U.S. lawmakers and former Biden administration

officials have argued that selling advanced AI chips to China

would allow them to catch up with the U.S. in frontier AI and

advance China's military ambitions.

"They often see U.S. high tech sometimes as a threat to them

because if we're ahead of the game like we are on AI chips,

sometimes they feel that can stop their own growth," said Greer.