A-share major indices opened lower but rebounded with upward volatility. Lithography equipment concept sector surged strongly with multiple stocks hitting daily limits. Semiconductor Manufacturing International Corporation A-shares and H-shares rose together.

On the morning of September 17, A-share major indices collectively opened lower before oscillating upward.

As of press time, the Shanghai Composite Index stood at 3857.79 points, down 0.11%, while the Shenzhen Component Index rose 0.11% and the ChiNext Index gained 0.23%.

From a sector perspective, lithography equipment concept stocks led the early rally, with automotive components, home appliances, and diversified financials among the top gainers. Meanwhile, precious metals and real estate sectors saw notable pullbacks, with steel and media-related sectors declining.

**Lithography Equipment Concept Sector Surges Strongly**

On the morning of September 17, the lithography equipment concept sector led market gains. As of press time, the lithography equipment index rose over 5%.

Wavelength Opto-Electronic hit the 20cm daily limit, while Yongxin Optics, Fujing Photonics, and Kersen Science & Technology all reached daily limits.

CCTC Advanced Materials surged over 11%, Sinoma Science & Technology rose more than 10%, while Maolai Optics, Raycan Optronics, and Soochow University-Dimensional rose over 8%.

**Semiconductor Manufacturing International Corporation A-shares and H-shares Rise Together**

On the morning of September 17, Semiconductor Manufacturing International Corporation A-shares once rose over 10%, while the Hong Kong-listed shares gained more than 6%.

According to foreign media reports, sources revealed that Semiconductor Manufacturing International Corporation is testing deep ultraviolet lithography machines manufactured by Shanghai startup Yu Liang Sheng. The machine uses immersion technology similar to that employed by ASML.

Sources indicated that while Semiconductor Manufacturing International Corporation's preliminary test results are encouraging, it remains unclear whether and when the machine can be used for large-scale chip production.

Additionally, sources revealed that NVIDIA's new artificial intelligence chip RTX6000D, specifically designed for the Chinese market, is experiencing sluggish demand, with some mainstream technology companies even choosing not to place orders. They noted that while the RTX6000D is primarily used for AI inference tasks, its pricing appears high relative to its performance, resulting in insufficient cost-effectiveness.

**Humanoid Robot Sector Rises**

On the morning of September 17, the humanoid robot index rose 1.7%. Zhongchen Technology and Aopu Optical both hit daily limits.

Sanhua Intelligent Controls once surged 6.45%.

**Central Enterprise Assets Exceed 90 Trillion Yuan Since "14th Five-Year Plan"**

On the morning of September 17, the State Council Information Office held a themed press conference on "High-Quality Completion of the '14th Five-Year Plan'" series. Zhang Yuzhuo, Director of the State-owned Assets Supervision and Administration Commission of the State Council, introduced the high-quality development of central enterprises during the "14th Five-Year Plan" period and answered reporters' questions.

According to the press conference, since the "14th Five-Year Plan" began, central enterprises have continuously strengthened their comprehensive capabilities, with total assets exceeding 90 trillion yuan.