Here is a grammatically correct and professional English translation (financial/news style):

Shokan Walikhanov Private School LLP announces the timely payment of the first coupon interest on its three-year bonds (KZ2P00013881). The coupon payment amounted to KZT 52,500,000. The payment was made on the bonds issued in the total amount of KZT 1 billion, with a coupon yield of 21% per annum (coupon payments are made quarterly). According to the terms of the issue, coupon interest is paid within 10 business days following the record date (August 27, 2025).

/KASE, 10.12.25/ – Shokan Walikhanov Private School LLP reported to the Kazakhstan Stock Exchange (KASE) the payment of the first coupon interest on its bonds (KZ2P00013881, alternative platform of KASE, “bonds” category, SWPSb1) made on August 28, 2025.

According to the aforementioned announcement, the said coupon payment amounted to KZT 52,500,000.

Shokan Walikhanov Private School LLP also reported the payment of the fourth coupon on its bonds (KZ2P00013881, SWPSb1).