Gahumi: Sunmi Concert T-Shirt Success
Case Analysis
Gahumi successfully managed the urgent production of 20,000 custom t-shirts for the Sunmi Concert. Despite a tight 15-day deadline and strict Pantone color matching requirements, Gahumi ensured high-quality manufacturing and timely delivery, exceeding client expectations. This project highlights Gahumi's capability in handling large-volume, time-sensitive orders with precision and efficiency, ensuring client satisfaction and successful event merchandise.
15
days
Total Order Delivery Time
20000
pieces
Custom T-Shirts Produced
2
days
Color Sample Turnaround Time
12
days
Actual Mass Production Time
Brand Story
Sunmi Concert Merchandise
The Sunmi Concert demanded high-quality, visually striking merchandise to enhance the fan experience. Custom t-shirts were a key item, requiring precise color replication to match event branding and swift production to meet the concert schedule. This presented a significant logistical challenge for merchandise procurement.
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Brand Goals
Event Merchandise Success
The core objectives for this project revolved around executing a large-scale merchandise order with extreme precision and speed. Firstly, the client mandated the production of 20,000 t-shirts, a substantial volume that required efficient manufacturing capabilities. Secondly, a critical requirement was absolute adherence to specified Pantone color codes for the prints, ensuring brand consistency and visual appeal that resonated with the artist's aesthetic. Thirdly, the delivery timeline was exceptionally aggressive, set at just 15 days from order placement to final delivery. This short window meant that every stage of production, from sampling to mass manufacturing and logistics, had to be optimized for speed without compromising quality. The ultimate goal was to deliver merchandise that not only met but exceeded the client's expectations in terms of both aesthetic fidelity and punctuality, thereby contributing to the overall success of the Sunmi Concert event.
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Challenges
Navigating Tight Deadlines and Color Accuracy
The primary challenge was the extremely tight 15-day delivery deadline for 20,000 units. This required an accelerated production schedule. A significant technical challenge was the stringent requirement for precise Pantone color matching on the t-shirts. This meant that color samples needed thorough approval before mass production, further reducing the available time for the actual bulk manufacturing to just 12 days.
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Solutions
Optimized Production and Rapid Sampling

To meet the urgent deadline and stringent color requirements, Gahumi implemented a highly efficient workflow. We prioritized the color sampling process, working diligently to produce and submit the required color swatches for client approval within an expedited 2-day period. This proactive approach allowed us to significantly shorten the pre-production phase compared to standard orders. This rapid turnaround on samples ensured that the mass production phase could commence swiftly, allowing us to manage the complex logistics of producing 20,000 units within the remaining tight schedule. 

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Success Achievements
Flawless Delivery for Sunmi Concert
The project successfully achieved all key objectives. Gahumi delivered 20,000 custom t-shirts for the Sunmi Concert event precisely on schedule, meeting the demanding 15-day deadline. The color matching was exact to the specified Pantone codes, and the overall workmanship was of high quality, meeting client expectations. This timely and high-quality delivery ensured the merchandise was available for fans as planned.

🚩About the Customer

Founded in 1994, Gahumi is a comprehensive fabric-printing enterprise integrated with product R&D, design, manufacture and sales. We offer a full line of fabric-printing, including towel, golf towel, flag, advertising T Shirt, sports activities item, fans scarf, hats caps, and other election accessories etc. Base on 31 years' manufacturing experience, we have been exporting products to US, Europe, East Asia, Africa and Middle East. And we have set up long term partner ship with companies from all over the world. Our clients benefit from lower manufacturing costs and time-to-market volume production through over 300 highly qualified staffs and the 3 manufacturing facilities, total 5000 sqm factory, including raw material center, sewing center, full-auto printing center, assembling center.

 

🚩About Gahumi

Founded in 1994, Gahumi is a comprehensive fabric-printing enterprise integrated with product R&D, design, manufacture and sales. We offer a full line of fabric-printing products, including towels, golf towels, flags, advertising T-shirts, sports items, fans’ scarves, hats & caps, and other election accessories, etc.

Based on 31 years of manufacturing experience, we have been exporting products to the US, Europe, East Asia, Africa, and the Middle East, and have established long-term partnerships with companies around the world.

With over 300 highly qualified employees and 3 manufacturing facilities covering a total area of 5,000 square meters (including a raw material center, sewing center, fully automatic printing center, and assembling center), our clients benefit from lower manufacturing costs and timely mass production for market launch.

The Solution
01
 Creative Design Solutions
Fast Response Throughout the Design Process: Equipped with a professional team of designers, customers can communicate their requirements through online meetings and emails. Designers will create exclusive designs based on corporate culture, event themes, etc. The delivery time of the first draft is controlled within 24 hours, and responses to revisions are prompt.  Design Security Assurance.
02
Fabric Selection Solutions
Rich Fabric Library: Build a fabric display area to synchronously showcase a variety of fabrics such as all - cotton, polyester - cotton, modal, and bamboo fiber both online and offline. Each fabric is meticulously labeled with parameters including composition, weight per square meter, hand feel, breathability, and sweat - absorption. Fabric swatches are provided for customers to touch, feel, and test.
03
Production Process Solutions
Diverse Printing Techniques: Offer printing techniques such as screen printing, direct - to - garment (DTG) printing, and heat transfer printing. 
Display finished sample T - shirts of different techniques to enable customers to make intuitive comparisons.
04
Quality Control Solutions
Full - process Quality Inspection: Set up multiple quality inspection checkpoints in links such as fabric warehousing, cutting, printing, sewing, and finished - product inspection. Before fabric warehousing, test indicators such as color fastness and shrinkage rate. During the production process, inspection personnel conduct random spot checks at any time to promptly identify and solve problems. When inspecting finished products, strictly check according to the AQL sampling standard to ensure that the defective rate is controlled within 1%.
15 days
Achieved delivery deadline
20000 units
High-volume production completed
2 days
Expedited sample approval
We were extremely impressed with Gahumi's ability to deliver 20,000 high-quality t-shirts within such a short timeframe. The color accuracy was spot on, and the prompt delivery ensured our merchandise was ready for the concert. Exceptional service!
Event Merchandise Manager
Sunmi Concert Production Team
Meeting the 15-day deadline for such a large order, especially with strict color requirements, was a huge task. Gahumi exceeded our expectations by delivering on time and with excellent product quality. We highly recommend their services.
Project Coordinator
Sunmi Concert Organizing Committee
Photo gallery
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Process Display
You can contact customer service according to the craftsmanship, position, content and style you want to customize, or you can consult customer service for recommendations.
Silkscreen
Gahumi Printing Process-Silkscreen.jpg
Sublimation
Gahumi Printing Process-Sublimation.jpg
Digital Printing
Gahumi Printing Process-Digital Printing.jpg
Embroidery
Gahumi Printing Process-Embroidery.jpg
Foil Stamping
Gahumi Printing Process-Foil Stamping.jpg
Custom Support
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Customization process
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Product Customization
Tailored to your needs
1
Size
2
Printing Logo
3
Color
4
Free Design
5
Material
6
Process
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Choose clothing style
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Printing + embroidery
Custom content craft
Crafts/Text/Logo/Pattern/Color
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Confirm the finished product
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Customized clothing colors
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