Honest windows, made the right way

Meet BARUNSASH, Shinyang Chemical’s uPVC (vinyl) window profile brand.

Like the light through a window, straight and true

The child who chased the light, and how BARUNSASH began

I grew up beside my father, who ran a window dealership,
watching sunlight pour in through the windows.
I was the kind of child who wanted to know how far the light reached, and where it ended.
That is when I learned that a window, before it keeps out the cold and the heat,
is where the light comes in every morning.

With the eye I developed at the dealership, I set out to make windows myself.
In 2017 I started a manufacturing company, even though manufacturing was entirely new to me.
Building BARUNSASH into a brand over the past nine years has not always been easy.
Each time we were shaken, we came back stronger,
and we saw more clearly what we had to protect.

The economy is tough right now.
That is exactly why I stay close and handle things personally.
From keeping the factory clean and organized to managing inventory, assets,
and quality, I check everything with my own eyes.

We are also building an AI-based smart factory.
We are collecting real-time process data from our extrusion lines
and building a system that records our KS quality control logs automatically.
By using data to keep our quality consistent,
we will be a window company that keeps pace with the times, not a tired, outdated manufacturer.

The light that comes through a window is always straight and true.
BARUNSASH will protect the place where that light comes in, and keep it right, to the very end.

Founder & CEO, Shinyang Chemical Co., Ltd. | BARUNSASH — Misun SimCEO on Instagram | Threads

Standards you can’t see build the trust you feel on the job site

Our mission · Creating happier places to live

A window is not just a building material.
It sets the standard for how well a job turns out and how far a business partner can be trusted.
BARUNSASH manages every step, from design and production
to shipping and support, by clear standards.
Right over fast.
We are a manufacturer that sets its standards before it talks terms.

Misun Sim, Founder & CEO, looking at a new extrusion die
#Monthly Window Technology (Wolgan Changho Gisul), July 2018 Looking at a new extrusion die

A solid foundation of standards, with room for every role to grow

When sales, production, quality, and support
work together naturally, each in its own role,
the whole organization runs more smoothly, and trust in our quality, delivery,
and support grows with it.
Independent teams that work together build stronger trust.

Clear operating standards

We run on standards, not price. We set clear standards for trade terms, customer support, and quality.

On-time delivery

Job-site schedules don’t wait. We treat on-time delivery as one of our most important operating standards.

Claims handling

We believe a company shows what it is made of by how it responds when something goes wrong, so we run a dedicated claims response system.

Hands-on manufacturing experience

From equipment and molds to quality and shipping, we have steadily built a practical, hands-on way of operating.

BARUNSASH, built together

No one person built BARUNSASH.
We are deeply grateful to the employees, suppliers,
dealers, and customers who have been with us from the very beginning.

THANK YOU, EVERYONE

#BARUNSASH, built together1:48 · On-site footage, 2019 – 2026 · Filmed by BARUNSASH

Years of building, standards to run by

BARUNSASH has grown not by expanding fast
but by building up standards, step by step.
That path has meant adding equipment and molds, running our quality and certification systems,
developing products and strengthening on-site support, reorganizing operations,
and laying the groundwork for digital transformation.

  • 2,268,791 lengthsProfile lengths shipped
  • 732,431km (455,111 mi)Driven by our delivery trucks
  • 300+Business partners served

Based on sales records from March 2018 to December 2025 · Profiles only · Distance is an estimated round-trip road distance for deliveries

2017
  • Founded Shinyang Chemical Co., Ltd., the start of BARUNSASH
  • Built our headquarters and factory in Gyeonggi Hwaseong Bio Valley
  • Misun Sim, Founder & CEO, mapped out her vision for BARUNSASH
The Hwaseong factory site on the day foundation work began
#GroundbreakingThe Hwaseong factory site on the day foundation work began
2018
  • Launched BARUNSASH, a dedicated window brand
  • Spent a full year researching the best blend ratios and raw materials (the Blend DATA Notes)
2019
  • Made 11 new molds (dies) as the product line expanded
  • Graduated from the Korea SMEs and Startups Agency (KOSMES) program
2020
  • Added an extrusion machine for custom products
  • Made 4 new molds
  • Introduced our BEST raw-material compounding test policy
  • Developed the 118 up-and-down sliding component (“ganego”)
  • Developed the P3 bracket to make installation much easier
  • Developed and brought to market our own balcony handle
  • Standardized on a single reinforcement type for maximum efficiency
2021
  • Adopted a customer-experience-focused brand policy and connected with customers through showrooms
  • Opened showrooms at ACE Hardware’s Yongsan and Geumcheon stores
  • Sales up 100% year over year
2022
  • Relaunched the window brand and opened a customer-focused website See website 1.0 →
  • Developed a catalog for professional dealers
  • No. 1, Korea Quality Satisfaction Index (KQSI), Building (Windows) category
2023
  • Launched our YouTube and KakaoTalk channels
  • Completed the mold for the MC end cap
  • No. 1, Korea Consumer Satisfaction Index (KSCI), Building (Windows) category
2024
  • Developed and distributed a window technical guide
  • Expanded our environmental equipment (dust collector and wastewater facilities)
  • Made a mold for small panel frames
  • Earned ISO 9001 / ISO 14001 certification
  • No. 1, Korea Quality Satisfaction Index (KQSI), Building (Windows) category
2025
  • Developed BF-235R and made its mold
  • Expanded our mold lineup to strengthen operations and production capacity
2026
  • Started online marketing
  • Laying the groundwork for digital transformation (documents, KS and ISO records)
  • Improving the factory environment and digitizing production and quality data

Headquarters & factory

You’ll find us at 43 Cheongwonsandan 3-gil, Mado-myeon, Manse-gu, Hwaseong-si, Gyeonggi-do, Republic of Korea, in Gyeonggi Hwaseong Bio Valley.

BARUNSASH headquarters and factory, full view
Front of the BARUNSASH factory
Headquarters and factory in 2018
Inside the production line in 2018
Profile production floor in 2018
Main gate of the BARUNSASH headquarters and factory — the BARUNSASH sign and the Shinyang Chemical factory

Certifications & awards

KS F 5602 product certification and ISO 9001 / ISO 14001 certification.
Ranked No. 1 in the Korea Quality Satisfaction Index (KQSI) in 2022 and 2024,
and No. 1 in the Korea Consumer Satisfaction Index (KSCI) in 2023, Building (Windows) category.
Certifications vary by product.
Certificates and test reports are available on request.

CertificationIssued byCertificate No.Valid until (next audit)
KS F 5602Plastic window and door profilesKorean Standards AssociationNo. 18-03372027.12.11
ISO 9001:2015Quality management systemGlobal System Certification (GSR)GSR-Q-36372027.12.19
ISO 14001:2015Environmental management systemGlobal System Certification (GSR)GSR-E-36372027.12.19

Awards

2022 award: No. 1, Korea Quality Satisfaction Index, Building (Windows) category
2022No. 1, Korea Quality Satisfaction Index
Building (Windows)
2023 award: No. 1, Korea Consumer Satisfaction Index, Building (Windows) category
2023No. 1, Korea Consumer Satisfaction Index
Building (Windows)
2024 award: No. 1, Korea Quality Satisfaction Index, Building (Windows) category — honored three years in a row
2024No. 1, Korea Quality Satisfaction Index
Building (Windows)Three years in a row

Certifications

KS F 5602 product certificate (Korean Standards Association, valid until December 11, 2027)
KS F 5602Product certificate
ISO 9001:2015 quality management system certificate, Korean version (valid until December 19, 2027)
ISO 9001Korean
ISO 9001:2015 Certificate of Registration, English version (valid until December 19, 2027)
ISO 9001English
ISO 14001:2015 environmental management system certificate, Korean version (valid until December 19, 2027)
ISO 14001Korean
ISO 14001:2015 Certificate of Registration, English version (valid until December 19, 2027)
ISO 14001English

In the press

Articles featuring BARUNSASH and Shinyang Chemical (in Korean).
Click a headline to read the original article.
Print articles open right on this page.

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