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we will be a window company that keeps pace with the times, not a tired, outdated manufacturer.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.

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.

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
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
- 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

- Launched BARUNSASH, a dedicated window brand
- Spent a full year researching the best blend ratios and raw materials (the Blend DATA Notes)
- Made 11 new molds (dies) as the product line expanded
- Graduated from the Korea SMEs and Startups Agency (KOSMES) program
- 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
- 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
- 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
- Launched our YouTube and KakaoTalk channels
- Completed the mold for the MC end cap
- No. 1, Korea Consumer Satisfaction Index (KSCI), Building (Windows) category
- 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
- Developed BF-235R and made its mold
- Expanded our mold lineup to strengthen operations and production capacity
- 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.






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.
| Certification | Issued by | Certificate No. | Valid until (next audit) |
|---|---|---|---|
| KS F 5602Plastic window and door profiles | Korean Standards Association | No. 18-0337 | 2027.12.11 |
| ISO 9001:2015Quality management system | Global System Certification (GSR) | GSR-Q-3637 | 2027.12.19 |
| ISO 14001:2015Environmental management system | Global System Certification (GSR) | GSR-E-3637 | 2027.12.19 |
Awards

Building (Windows)

Building (Windows)

Building (Windows)Three years in a row
Certifications





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.
- 2026.06.24

Tap the page to see it larger.
- Sim Platform supplies its subscription-based “Nubison AX” to Shinyang Chemical2026.05.20
- Shinyang Chemical’s BARUNSASH stays active with YouTube, new mold development, and more despite a tough economic downturn2024.01.15
- BARUNSASH named No. 1 in the 2022 Korea Quality Satisfaction Index, Building (Windows) category: “Recognized for customer-centered management”2022.10.17
- 2022 Korea Quality Satisfaction Index No. 1 Winners, Part 52022.10.12
- Shinyang Chemical’s BARUNSASH wins “2022 Korea Quality Satisfaction Index No. 1” in the Building (Windows) category2022.10.01
- Shinyang Chemical launches the BARUNSASH brand website (www.barunsash.com)2022.07.21
- Shinyang Chemical announces a new leap forward, built on strong sales growth2022.05.23
- Misun Sim, CEO of Shinyang Chemical, joins the “Children’s Traffic Safety Relay Challenge”2021.09.10
- 2018.07.05
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- 2018.07.01
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