Chinese solar products manufacturer GCL Technology Holdings Ltd (<a href="https://www.hkex.com.hk/Market-Data/Securities-Prices/Equities/Equities-Quote?sym=3800&sc_lang=en" target="_blank">HKG: 3800</a>), formerly known as GCL-Poly Energy Holdings Ltd, on Friday issued a profit warning, stating that it expects to post an attributable loss for the nine months ended September due to declining average market selling prices of polysilicon and silicon wafers during the reporting period.