Audited separate semi-annual financial statements 2025

CÔNG TY CỔ PHẦN SỢI THẾ KỶ

Digitally signed by CÔNG TY CỔ PHẦN SỢI THẾ KỶ

DN: cn=CÔNG TY CỔ PHẦN SỢI THẾ KỶ c=VN o=CÔNG TY CỔ PHẦN SỢI THẾ KỶ

Reason: I am the author of this document Location:

Date: 2025-08-29 17:06+07:00

CONCz TY CO PHAN SQI THE KY

NrinFsYNz«iJc +"JBER

5k/No: § -25/CV-CTTK

CQNG HOA HQI CHU NGHIA VI T NAM

D9c ljp - Tq do - Hpnh phuc

roz sociazisrxzevBLlC OF VIETNAM

Independence - Freedom - Happiness

TP.HCMHochiminh city, ngây/dafe ihiixiy/month 08 n€Myear 2025

CONG BE THONG TIN INFORMATION DISCLOSURE TREN CONG THONG TIN DUN TO CUA UY BAN ON THE STATE SECURITIES CH'UNG KHO NBD NIfSC VG SP GIAO DJCH COMMISSION AND HOCHIMINH STOCK

Kinh g'u'i/to: - Uy ban Chirng khoân Nha nude

- Si'r Giao d{ch chirng khoân TP.HCM

• Ten to chirc: Cong ty co phan Sqi The Ky

  Organization name: Century Synthetic Fiber Corporation

• M5 chñng khoân/Z'icker: STK

  Dja chl try sd chlnh: Lé B1-1, Khu cong nghipp Tay Bâc Cu Chi, xñ Tân An H9i, TP.HCM Headquarter oflice. Lot BI-1, North West Cu Chi Industrial Zone, Tan An Hot Commune, HCMC. Dign thoqi/2'ef.: (+84.276) 388 7565 Fax: (+84.276) 388 7566

• Ngu6i thqc hipn cñng bo thong tin. Dog Tripu Hfia - Chuc vp: Chii tjch HDQT

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

• Lori thong tin cong bo/Z'ype of information disclosure:

if djnh k'y/poriodie D bet thu6ng/irregular O 24h/?# homes O thco yéu ciu/oii JeiticitiJ

Nji dung thñng tin cñng bofContents ofin(ormation discloswe:

1. Giâi trinh chénh l9ch lqi nhu3n 1H2025 so vñi cung ky/ Explanation of profit d erences 1H2025 year over year,

2. Bao câo tâi chinh h9p nhat bin nién soft xét 2025a 2025 Semi-annual Audited Consolidated Financial Statemeitts,'

3. Bao câo tâi chinh riéng bén nién soft xét 2025/ 2025 Semi-annual Audited Separate Financial Statements.

Thñng tin nay dâ duqc cñng bo trén trang thong tin dipn tu ciia cong ty vâo ngây U /08/2025 ii duñng dan: httus://thekr.vn

The Information was published on the Company's website on K /0&2025 at the link: hltos.7/thekv,vn

Tdi cam ket etc th6ng tin c6ng bo trén day lâ ding str t vâ horn toiln chtu trach nhi§m trudc phâp lujt ve npi dung cfc thfing tin dâ cñng b8./

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

Tbi lieu dinh kéiWAttachments

- Tâi lieu lien quan de'n vi c CBTT. Documents related to the information disclosure.

DAI DUN TO CH'LfClONBEHALF OF THE COMPANY

CHU TJC

CZ£dZR8f4/V Of' Z'ZZS

CONGTY CO PHAN

NGO DAI DIEN THEO PHAP LUAT

c6 cwc6 PuA spT c x?

CENTURY SYhITHBTIC FfBZR CORPORATION

No. ML) - slot -ozzx

Ho Chi Minh City, August 29, 2025.

SOCIALIST REPUBLIC OF VIETNAM

Independence - Freednm - Happiness

To:

• State Securities Commission.

» Ho Chi Minh City Stuck Exchange (HOSE)

Century Synthetic Fiber Corporation hereby provides an explanation for the fluctuation in after-tax profit for 1H2025 compared to 1H2024, as presented in the VAS financial statements prepared by the Company on August 29, 2025, as follows:

Unit: YND

+ Consolidated:

Unit: VND

]

Reasons:

The Parent Company's net revenue and consolidated net revenue increased by VND 142.5 billion and VND 140.76 billion, respectively-equivalent to growth of 25% and 24.7% year-on-year-mainly driven by higher sales volume.

The Parent Company's gross profit rose by VND 106.4 billion and consolidated gross profit by VND 96.1 billion, representing increases of 226.9°Z« and 205% year-on-year, primarily due to a lower cost of goods sold ratio compared to the same period and increased sales volume.

1/2

Trtj sé B1-1 KCN Téy Bâc Cu Chi, Huyén Cd Chi, Tp.HCM, Viet Nam -Cht nMnh: Otzong so 8, KCN Trâng Bâng, Huyen Trâng l3éng, Tfnh Tây Ninh, Viet Nam DT: (+84.8) 37g0 7565; (+84,86) 380 9537 •Fax: {+B4.8) 3790 7566; (+B4.66) 389 9536 -Email: century@hem.vnn.vn, csf@century.wt Website: https://www.theky,vn

CEblTtJRY BVHTHETlg HIGH ODRPORATIOR

The Parent Company's profit before tax grew by VND 118.97 billion, up 844.8% year-on-year; profit after tax rose by VND 98.1 billion, up 656.5% year-on-year. Consolidated profit before tax increased by VND 104.6 billion, up 193.2% year-on-year; consolidated profit after tax rose by VND 84 billion, up 152.7% year-on-year, mainly attributable to higher gross profit, increased financial income, and slightly reduced selling expenses.

We sincerely thank you and extend our best regards.

Century Synthetic Fiber Corporatl

CONG TV -••

COPHAN

.U HOA

Recipients:

• SSC, HOSE;

• Company Website;

• Office archives.

2/2

Try séc 81-1 KCN T5y Bâc Cu Chi, Huy n Cd Chi, Tp.HCM, Ve2t Nam Chi nls€nk: Dirti'ng 8, KCN Trâng Béng, Huy2n Trâng Béog, Tlnh Tây Ninh, Viet Nam

DT: (*84.8) 3750 7565; (+84.66) 389 0537 Fax: {+84.8) 3790 7566, (+B4.66) 389 9536 • Email: century@hem.vnn.vn, csf@century.v-n WhbsBe: https://www.theky.vn

Century Synthetic Fiber Corporation

Interim separate financial statements

For the six-month period ended 30 June 2025

EY

Shape the future with confidence

Century Synthetic Fiber Corporation

CONTENTS

Pages

General information

Report of management

Report on review of interim separate financial statements

Interim separate balance sheet Interim separate income statement Interim separate cash flow statement

Notes to the interim separate financial statements

1

2

3 - 4

5 - 6

8 - 9

10 - 33

1