glass lock

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.

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

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

• Glass airtight containers
• Heat resistant glassware
• Tempered glass food storage
• Glass cookware kitchenware
• Eco friendly glass containers

Headquarters

HQ city

Seoul

HQ country

South Korea

HQ region

Asia

Offices2 records

Markets served

GTM type

B2C

Offering type

Hardware or Manufacturing

Cost components

Supply Chain, Operations, Personnel, Technology or R&D, Marketing or Sales, Infrastructure

Revenue model

1. 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.
2. Cookware Products: Sale of cookware including frying pans, woks, grills, and pots under the ChefTopf brand.
3. Beverageware and Tableware: Sale of tumblers, cups, mugs, glasses, and tableware including the Boena premium tableware brand.
4. 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

Core 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

Segments4 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature2 records

Partnerships

One partnership is on record.

• SGC Solutions (SGC솔루션)coreOthersSGC 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

Direct 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

• YouTubeyoutube.com/@glasslock
• Xx.com/glasslockskg
• Facebookfacebook.com/glasslockkr
• LinkedInlinkedin.com/company/samkwang-glass-co-ltd-

Revenue estimate

Valuation estimate

Number of profiles

Profiles2 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about glass lock