At the midday break, the Hang Seng Index in Hong Kong was down 0.42%, or 98 points, trading at 23,517 points.

The Hang Seng Tech Index saw a decline of 0.28%. Trading volume on the Hong Kong market for the morning session reached HK$1.87 trillion.

TENCENT (00700) shares rose 2.83%. The company recently unveiled its new-generation large language model, Hunyuan Hy3, and has reportedly raised over HK$10 billion from reducing stakes in listed companies.

Shares of Gouxia Technology (02655) surged 21%, bringing its two-day cumulative gain to over 50%, as the company continues to expand its energy storage application scenarios in the Nordic region.

Yifei Technology (06871) jumped 46%. The company recently entered a strategic partnership with South Korea's MiR, and its self-developed Hongjun 001 wheel-armed humanoid robot has been deployed.

Haiguang Xinzheng (01191) gained over 15% after showcasing its new-generation silicon photonics solution and 6.4T NPO optical engine products at the Mobile World Congress Shanghai.

Deshi-B (02526) climbed over 6% to a record high. Its iMedLoop platform is building a scarce full-cycle productivity foundation for the industry, strengthening the core competitive logic of medical AI.

Xunce (03317) advanced more than 4% after signing a strategic cooperation agreement with Gechuang Dongzhi to jointly launch the "Token Factory Alliance" ecosystem in the industrial manufacturing sector.

Construction machinery stocks performed actively, with excavator sales in June increasing by 35.3% year-on-year.

Sany Heavy Industry (06031) rose over 2%, while China Longgong (03339) gained 2%.

Taobo (06110) fell more than 5% after Nike reduced discounts in the Chinese market, though UBS noted the likelihood of terminating online authorizations is low.

COSCO Shipping Energy Transportation (01138) dropped another 6%+ as uncertainties in the strait persist and fewer open cargoes in the Persian Gulf are causing high freight rate volatility.

PCB concept stocks declined again. Nvidia responded to rumors about Kyber delays, dealing a blow to Asia's computing power supply chain.

Han's CNC (03200) fell 9%.

Kingboard Holdings (00148) dropped 7.5%.

Shenghong Technology (02476) declined 7%.

Guanghe Technology (01989) was down 5%.

Kingboard Laminates (01888) decreased 8.87%.

In the new listings segment, Tongrentang Medical & Healthcare (02667), a traditional Chinese medicine medical services group under Tongrentang, debuted today and was down 40% at midday.