glass lock
Glass Lock is a Korean consumer brand manufacturing heat-resistant glass sealed containers and kitchenware at Asia's largest Nonsan facility, sold direct-to-consumer and exported to 90+ countries, holding the #1 Korean market share in glass airtight containers.
- Company typePrivate
- Founded1967
- HeadquartersSeoul, South Korea
- Headcount1,001–5,000
- GTM typeB2C
- OfferingHardware or Manufacturing
What glass lock does
Glass Lock (글라스락) is a Korean consumer goods brand specializing in heat-resistant glass sealed containers and related kitchenware, operated under parent SGC Solutions Co., Ltd. (SGC솔루션 주식회사). The company manufactures 100% of its products domestically at the Nonsan facility, which is described as Asia's largest glass manufacturing plant, producing approximately 7,200 units per hour and supporting 400+ SKUs across the Glass Lock core line, Glass Lock Baby (infant feeding), Glass Lock ChefTopf (cookware), Boena (premium tableware), and Opet (pet products). Its core technical differentiator is the proprietary TEMPERMAX™ heat-strengthened glass treatment, supplemented by Korea's first four-sided locking airtight container mechanism, backed by 407 patents as of March 2023.
The business model is straightforward hardware sales: Glass Lock sells direct-to-consumer through its owned Glass Lock Mall (glasslockmall.co.kr) and Naver Store, distributes through Korean retail and discount chains (where it holds #1 market share per Nielsen Scantrack data from July 2022 to December 2025), and exports to 90+ countries (also cited as 96) across North America, Europe, China, and broader Asia. Cumulative sales volume exceeded 189.6 million units between July 2018 and December 2023 on a semi-finished product basis. Customer segments include health-conscious households seeking plastic-free food storage, parents with infants, home cooks and kitchen enthusiasts, and pet owners.
Glass Lock was launched as a brand in 2005, but its corporate lineage traces to Samgwang Glass Industry, founded in 1967. The company has undergone multiple name changes (to Samgwang Glass Industry Co., Ltd. in 1971, Samgwang Glass Co., Ltd. in 2010, and finally SGC Solutions Co., Ltd. in 2020) and received a technical partnership with Japan's Ishizuka Glass in 1981 that seeded its manufacturing capability. It has won ten consecutive First Brand Awards, nine consecutive World Class Product designations, and multiple international design awards (iF, Red Dot, German Design, US Good Design). The company is privately held with no disclosed external venture or private equity ownership; current co-representatives are Lee Kwang-soo and Lee Bok-young. No revenue, headcount, or margin figures are publicly disclosed.
glass lock firmographics
Firmographics- Name
- glass lock
- Legal name
- SGC Solutions Co., Ltd. (SGC솔루션 주식회사)
- Website
- https://glasslock.co.kr
- Company type
- Private
- Founded year
- 1967
- Operating status
- Operating
- Headcount range
- 1,001–5,000 employees
- Short description
- Glass Lock is a Korean consumer brand manufacturing heat-resistant glass sealed containers and kitchenware at Asia's largest Nonsan facility, sold direct-to-consumer and exported to 90+ countries, holding the #1 Korean market share in glass airtight containers.
- Ownership category
- akta.pro rank
glass lock industry classification
Industry- Product category
- Glass Airtight Food Storage Containers
- NAICS
- Glass Container Manufacturing (327213), Glass and Glass Product Manufacturing (3272)
- SIC
- Glass Containers (3221), Glass & Glassware, Pressed Or Blown (3220)
- akta.pro primary industry
- Wide-Mouth & Storage Glass Packaging (Canisters, Utility Jars) (IMALAEAI)
- akta.pro secondary industry
- Closures-Compatible Glass Packaging (Threaded, Lug, Crown-Finish Bottles/Jars) (IMALAEAJ)
Keywords
Where glass lock is headquartered
LocationHeadquarters
- HQ city
- Seoul
- HQ country
- South Korea
- HQ region
- Asia
Offices2 records
Markets served
glass lock business model
Business model- GTM type
- B2C
- Offering type
- Hardware or Manufacturing
- Cost components
- Supply Chain, Operations, Personnel, Technology or R&D, Marketing or Sales, Infrastructure
Revenue model
- Glass Food Storage Containers: Sale of glass airtight containers and storage products for household food storage. Products are sold through direct e-commerce, retail stores, and export channels to 90+ countries worldwide.
- Cookware Products: Sale of cookware including frying pans, woks, grills, and pots under the ChefTopf brand.
- Beverageware and Tableware: Sale of tumblers, cups, mugs, glasses, and tableware including the Boena premium tableware brand.
- Baby and Pet Products: Sale of baby feeding products and pet care items including feeding bowls, water bottles, and pet accessories.
Go-to-market motion1 record
Distribution channels4 records
Marketing channels5 records
glass lock product offering
Product offeringCore offering
Glass Lock manufactures and sells tempered glass airtight food storage containers, cookware, tableware, beverageware, baby feeding products, and pet products under multiple sub-brands. Its flagship Glass Lock containers use proprietary TEMPERMAX™ heat-strengthened glass with a four-sided locking airtight seal and are microwave, dishwasher, freezer, and oven safe. All products are 100% manufactured at the Nonsan glass facility in Korea and sold through owned e-commerce, Korean retail chains, and export to 90+ countries.
Product overview
Glass Lock is a Korean glass sealed container and kitchenware brand manufactured by SGC Solutions. The company produces a multi-brand portfolio centered on tempered glass food storage products. The core offering is the Glass Lock glass sealed container line featuring proprietary TEMPERMAX™ technology, complemented by sub-brands: Glass Lock Baby (baby food containers), Glass Lock Chef Topf (cookware including frying pans, woks, and pots), Boena (tableware and glassware), and Opet (pet products). Product categories span food containers, cookware, beverage ware (tumblers and cups), tableware, pet supplies, and small appliances. All products are manufactured at the Nonsan factory in South Korea with 100% domestic production, and exported to over 90 countries worldwide.
Differentiator
Problem solved
Functional benefit
Brands
- 글라스락 베이비 (Glass Lock Baby): Baby feeding dishes and products made with heat-resistant glass and LOHAS certification
- 글라스락 셰프토프 (Glass Lock ChefTopf)
- 보에나 (Boena)
- 오펫 (Opet)
Products and services
- Glass Lock Glass Sealed Containers (글라스락)
- Glass Lock Baby (글라스락 베이비)
- Glass Lock ChefTopf (글라스락 셰프토프)
- Boena (보에나)
- Opet (오펫)
- Glass Lock Cookware Line (쿡웨어)
- Glass Lock Beverageware (베버리지웨어)
Quantifiable outcome
- 7,200 units sold per hour globally
- +2 more outcomes
Companies that use glass lock
Customer profileSegments4 records
Ideal customer profiles4 records
glass lock technology and API
TechnologyTechnology focussed No
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature2 records
glass lock partnerships and signals
Strategic signalPartnerships
One partnership is on record.
- SGC Solutions (SGC솔루션)coreSGC Solutions is the parent company of Glass Lock, managing brand operations, manufacturing, and distribution. The company changed its name from SGC Solution to SGC Solutions in 2020.
Scale indicators7 records
Recent moves9 records
Expansion highlights5 records
glass lock competitors and assessment
Company assessmentDirect peers
- Duralex: French tempered glass tableware and storage manufacturer. Comparable in heat-strengthened glass technology for household food and beverage applications, serving similar foodservice and consumer segments across Europe and global markets.
- Lock&Lock: Korean competitor and one of the largest airtight container brands globally. Closest direct comparable to Glass Lock in product category (airtight food storage containers), target market (health-conscious households) and four-sided locking sealing technology.
Broad incumbents
- Tupperware Brands: Global incumbent in reusable food storage containers with a broad portfolio of plastic-based solutions. Comparable business model (consumer kitchen storage) and global distribution footprint, though primarily plastic rather than glass.
- Corning (Pyrex, Corelle, Snapware): US-based specialty glass and ceramics manufacturer with consumer brands (Pyrex, Corelle, Snapware) overlapping directly with Glass Lock's food storage, cookware and tableware categories at global scale.
- Pyrex (Instant Brands): Iconic US/European glass ovenware and food storage brand. Comparable in tempered glass food containers and cookware categories, with strong brand recognition across Glass Lock's export markets in North America and Europe.
- IKEA 365+: IKEA's house food storage and tableware line including glass containers and kitchenware. Comparable mass-market glass and hybrid food storage products sold through IKEA's global store network, overlapping significantly with Glass Lock's retail channels.
Emerging players
- Bodum: Danish/Swiss housewares brand with significant glass coffee, tea and kitchenware offering. Comparable in premium glass consumer products (tumblers, storage, beverageware) and global retail distribution across Glass Lock's European export markets.
- Sistema Plastics: New Zealand-based reusable container and lunchware brand. Comparable in mass-market airtight food storage products for households and children, competing in adjacent material (plastic) but in the same consumer occasions and retail channels.
- Joseph Joseph: UK design-led kitchenware brand with food storage, prep and organization products. Comparable in design-award-winning premium consumer kitchenware positioning and global retail presence overlapping with Glass Lock's export footprint.
- Hario: Japanese heat-resistant glassware specialist known for coffee and tea equipment. Comparable in heat-resistant borosilicate/tempered glass manufacturing know-how and premium consumer positioning, with overlap in beverageware and tableware categories.
Market position
Strengths4 records
Weaknesses4 records
Competitive moat5 records
Key risks5 records
Key highlights6 records
Customer concentration
glass lock social profiles
Digital presenceglass lock financial estimates
Financial estimateRevenue estimate
Valuation estimate
glass lock leadership team
Management profileNumber of profiles
Profiles2 records
glass lock funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
glass lock M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about glass lock
What does glass lock do?
Glass Lock manufactures and sells tempered glass airtight food storage containers, cookware, tableware, beverageware, baby feeding products, and pet products under multiple sub-brands. Its flagship Glass Lock containers use proprietary TEMPERMAX™ heat-strengthened glass with a four-sided locking airtight seal and are microwave, dishwasher, freezer, and oven safe. All products are 100% manufactured at the Nonsan glass facility in Korea and sold through owned e-commerce, Korean retail chains, and export to 90+ countries.
Is glass lock a public or private company?
glass lock is a private company. It is classified as corporate owned and is currently operating.
When was glass lock founded?
glass lock was founded in 1967. It employs 1,001 to 5,000 people.
Where is glass lock based?
glass lock is headquartered in Seoul, South Korea, in the Asia region.
How does glass lock make money?
Four revenue lines are on record. Glass Food Storage Containers are the primary driver. The others are cookware Products, beverageware and Tableware and baby and Pet Products.
Who are glass lock's main competitors?
Direct peers on record are Duralex and Lock&Lock. Broad incumbents are Tupperware Brands, Corning (Pyrex, Corelle, Snapware), Pyrex (Instant Brands) and IKEA 365+. Emerging players are Bodum, Sistema Plastics, Joseph Joseph and Hario.
Does glass lock have an API?
No public API is recorded for glass lock.
What industry is glass lock in?
glass lock's product category is Glass Airtight Food Storage Containers. Its primary akta.pro industry code is IMALAEAI, Wide-Mouth & Storage Glass Packaging (Canisters, Utility Jars), with a secondary code of IMALAEAJ, Closures-Compatible Glass Packaging (Threaded, Lug, Crown-Finish Bottles/Jars). Its NAICS code is 327213 and its SIC code is 3221.