At midday, the three key A-share indexes collectively recorded gains, with the Shanghai Composite Index advancing 0.12%, the Shenzhen Component Index edging up 0.11%, and the ChiNext Index notably surging 0.55%. The precious metals, biotechnology, and computer hardware sectors shone brightly, as evidenced by Western Gold and Baihua Pharmaceutical reaching their daily trading limits, and Unisplendor Corporation soaring over 4%. Conversely, the insurance, aerospace and military, and securities sectors exhibited softer performances, with China Satcom plunging over 7%, New China Life Insurance declining more than 3%, and West China Securities dipping over 2%.