Consolidated financial statements Q4.2025

CÔNG TY CӘ PH⑬N SӦI THӂ KӸ

CONG TY CA PHA SQI THE KY

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Reason: I am the author of this document Location:

Date: 2026-01-26 16:28+07:00

CQNG HOA HQI CHU NGHIA VIJT NAM

DQc lap - Tq do - H9nh phuc

So/to: -26/CV-CTTK

TP.HCWffocfiiminfi cii, ngay7dofe thanQmonf/i 01 n year 2026

C&NG BE THANK TIN INI"£fRMA'I'J£fN HISL'L£fSUIL

TREN CONG THONG TIN DIEN TO CUA UY BAN ONTHE STATE SECIJMTIES

CHUG KHO TP.HCM EXCHANGE'S PORTAL

Kinh gñi/to: - Uy ban Chñng khoan Nha nirñc

- Six Giao dJch chñng khodn TP.HCM

• Ten to chrrc: Cfing ty co phan Spi The Ky

  Organization name: Century Synthetic Fiber Corporation

• Ma chñrig khoan/Z'ic/rer: STK

• Dia chi trp sd chinh: Lñ B1-1, Khu cong nghiep Tay Bâc Cu Chi, xñ Tân An H i, TP.HCM Headquarter office. Lot BI-1, North West Cu Chi Industrial Zone, Tan An Hoi Commune, HCMC. Dipn thoai/be/.: (+84.276) 388 7565 Fax: (+84.276) 388 7566

  Nguñi thqc hien cfing bfi thong tin.' D}ang Tripu Hda - Chirc vp: Chu tich HDQT

  Spokesman: Dang Trieu Hoa - Title: Chairman of the BOD

• Loai thong tin cong bo/?'ype of information disclosure:

B dinh k'y/periodic O bat thu0nglirregular O 24h/24 hours D theo yéu can/oB demand

Ngi dung thñng tin cñng bo/Contents O/f2f/orrinfi0n disclositre:

1. Bao câo tai chlnh riéng vâbâo cao tai chlnh hpp nhat Q4.2025 (ban tiéng viet va ban tiéng anh)

   Separate onJ consolidateJfinanci‹il slulemenls Q4.2025 (English version ‹ind Vielnvmese version)

2. Giai tnnh chénh lpch lii nhuan Q4.2025 so vdi cung ky

Explanation ofProfit differences Q4.2025 year-over-year

Thong tin nay da duqc cfing bo tre"n trang thong tin dipn tu cua cfing ty vao ngay /01/202ti tqi dtiing dan: https://thekv.vn

TO.i,s i.nfcrmu!lnn wasf›ut›Ii.she.d. en lh«. C.ompany'.s weh.site nn dt /fJl/2fl25 at the link. http.K.'//thr.In .vn

Tñi cam kit cfc th6ng tin cñng bo trén day la dting str t va hoân toân chtu trach nhi§m tnrdc phâp luat ve n i dung cac thñng tin da cñng bo./

We hereby declare to be responsible for the accuracy and completeness ofthe above information.

Tbi lieu dinh kém/Attachments

- Tbi lieu lién quan dén vipc CBTT. Documents related to the information disclosure.

DAI DIEN TO CH*UC/ONZf2ff£4£F OF FZfA CO3fPANP

NGU DAI DUN THEO PHA LUAT

CHU TJCH HDQT/CZZAfRlf4NOF THE BOD ) -

CO PHAN

U HOA

No: -26/CV-CTTK

Ho Chi Minh City, January 24, 2026.

Re: Explanation of profit fluctuations between the two reporting periods.

To:

• State Securities Commission.
• Ho Chi Minh City Stock Exchange (HOSE)

Century Synthetic Fiber Corporation hereby provides an explanation for the fluctuation in after-tax profit for Quarter IV of 2025 compared to Quarter IV of 2024, as presented in the VAS financial statements prepared by the Company on January 24, 2026, as follows:

Unit: VND

Reasons:

Due to weak demand, revenue of the Parent Company and consolidated revenue decreased by 12.9% and 2.9%, respectively. Meanwhile, although the gross profit of the Parent Company increased by 16.7% thanks to a higher proportion of recycled yarn, consolidated gross profit decreased by 14% as the Unitex factory began recognizing depreciation expenses from the fourth quarter of 2025 and due to the impact of the elimination of consolidated intercompany transactions.

Profit before tax of the Parent Company increased by VND 13.4 billion, representing a year-on-year increase of 47.3%, mainly attributable to higher gross profit, higher financial income, and lower financial expenses. However, due to higher corporate income tax expenses compared to the same period last year,

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Try sé': B1-1 KCN Tây Bâc Cu Chi, Huy9n Cd Chi, Tp.HCM, V 'I Nam Chi nhénh: Bu'0'ng so 8, KCN Trâng Bang, Huyen Trâng Béng, Tlnh Tây Ninh, Viet Nano DT: (+84.8) 3790 7565; (+84.66) 389 9537 -Fex: (+84.8) 37a 7566, (+84.66) 3g9 9536 •Emsll: century@hem.vnn.wi, csf@century.vn 9¥ebsIts• WVw.theky.vn

/y CDNG TY CD PHA¥I 6@ THé KY

profit after tax of the Parent Company increased by only VND 8.9 billion, equivalent to a year-on-year increase of 37.4%.

Meanwhile, consolidated profit before tax increased by VND 36.2 billion, equivalent to a year-on-year increase of 212.8%, and consolidated profit after tax increased by VND 31.4 billion, corresponding to a year-on-year increase of 147.8%, primarily because Unitex no longer had to recognize foreign exchange losses starting from the fourth quarter of 2024.

We sincerely thank you and extend our best regards.

Century Synthetic iher Co

i TY

CO PHAN

4!

U HOA

• SSC, HOSE;

• Company Website;

• Office archives.

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Try s6r B1-1 KCN Téy Bâc Cu Chi, Huy@ Cd Chi, Tp.HCM, Vi0f Nam *Chl nkénh: Oizong 8, KCN Trang Bang, Huygn Trang Bang, Ttnh T4y Ninh, Viet Nam DT: (*84.8) 37g0 7565; (+84.86) 389 0537 Yax: {+84.8) 3790 7566; {+B4.66) 389 9536 •Eataff: century@hon.vnn.vn, csf@century vn• Webdta: www the{‹y.vn

Century Synthetic Fiber Corporation Consolidated Financial Statement December 31, 2025

Ccntiuy Synthotio Fiber Corporation

TABLE OF CONTENTS

General information

Report of the Board ofManagement Consolidated Balance Sheet Quarter IV.2025 Consolidated Income Statement Quarter IV.2025 Consolidated Cash Flow Quarter IV.2025

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4 - 6

7 - 8

9 - 10

Notes to the Consolidated Financial Statements for Quarter IV.2025 11 - 27