General Updates

August 18, 2026 To, To, BSE Limited National Stock Exchange of India Limited Department of Corporate Services Exchange Plaza, Plot No. C/1 Phiroze Jeejeebhoy Towers, 'G' Block, Bandra – Kurla Complex Dalal Street, Mumbai- 400 001 Bandra East, Mumbai 400 051 Scrip Code: 524091 Trading Symbol: CARYSIL Subject: Clarification under Regulation 30 of the SEBI (Listing Obligations and Disclosure Requirements) Regulations, 2015 – on U.S. Tariff-Rate Quota on Quartz Surface Products, not related to our Quartz Sinks With reference to recent reports regarding the tariff-rate quota (“TRQ”) imposed by the United States on imports of certain Quartz Surface Products (“QSP”), the Company wishes to clarify that the measure applies to specified quartz surface products, including engineered quartz slabs and fabricated quartz surfaces, falling within specified HTSUS classifications. The Company’s quartz business is distinct product category from quartz slabs and countertop surface products covered under the aforesaid safeguard measure. Based on the product scope of the measure and the applicable product classifications, the Company’s quartz kitchen sink exports to the United States do not fall within the products covered by the aforesaid TRQ. Accordingly, the Company does not expect any direct impact on its quartz sink exports to the United States on account of this measure. The Company continues to monitor developments in U.S. trade regulations and will keep its stakeholders informed of material developments, if any. This intimation is being made pursuant to Regulation 30 of the SEBI (Listing Obligations and Disclosure Requirements) Regulations, 2015. Thanking you, Yours faithfully, For Carysil Limited Reena Shah Company Secretary & Compliance Officer