Address: No. 4067, Longyuan Road, Longdu Street, Zhucheng City, Shandong Province, China WhatsApp: +8614768671043 WeChat: 14768671043

About Us

Your trusted partner for custom flexible packaging solutions

Who We Are

Zhucheng Zhongjun Packaging Co., Ltd. (Sinoflex Packaging) is a trusted custom flexible packaging manufacturer based in Zhucheng City, Shandong Province, China, serving North America, Europe, Southeast Asia, and global markets since 2012. We specialize in custom stand‑up pouches, flat bottom bags, spout pouches, coffee & tea packaging, kraft paper packaging, roll stock film, biodegradable & eco‑friendly packaging, and high‑barrier food‑grade packaging solutions for food, pet food, coffee, bakery, beauty, and industrial applications.Our modern production base covers 17,685 ㎡, with a 10,248 ㎡ dust‑free cleanroom dedicated to food‑safe and hygienic manufacturing. We operate intelligent, automated production lines including high‑speed online inspection printing presses, solvent‑free laminators, dry laminators, automatic slitters, and automatic bagging machines, ensuring consistent quality, high output, and precise customization for wholesale, bulk, OEM, and ODM orders.At Sinoflex Packaging, we uphold Quality for Growth, Reputation for Survival. We strictly follow international food packaging standards and hold key certifications to meet EU, US, and Southeast Asian regulatory requirements. Our in‑house product testing lab and full‑process quality control deliver safe, reliable, and compliant packaging that preserves freshness, extends shelf life, and strengthens brand presentation.We provide end‑to‑end custom packaging services: structural design, custom printing, material selection, sampling, mass production, and global logistics support. Whether you need custom printed coffee bags with valve, wholesale stand‑up pouches, food‑grade mylar bags, biodegradable packaging, or flexible packaging film, we deliver tailored solutions that balance performance, sustainability, and cost efficiency.With stable supply chains, fast lead times, and professional customer support, Sinoflex Packaging has built long‑term partnerships with brands, distributors, and importers worldwide. We are committed to being your reliable flexible packaging partner for export‑ready, market‑adapted packaging solutions.Contact us today for free samples, custom quotes, and professional packaging support!Website: https://www.sinoflexpack.com

As a BRC and ISO 9001:2015 certified manufacturer, we serve brands across 50+ countries with flexible packaging solutions that combine superior barrier performance, vibrant custom printing, and eco-friendly material options.

20+ Years of Export Experience
50+ Countries Served
500M+ Annual Production Capacity
1000+ Satisfied Clients Worldwide
30+ Production Lines

Quality Certifications

International standards you can trust

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ISO 9001:2015

Quality Management System certified. Rigorous process control at every production stage.

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BRC / BSCI

British Retail Consortium certified. Your assurance of food-safe packaging materials.

FDA Compliant

All food-contact materials comply with FDA regulations for U.S. market entry.

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Eco-Certified

Compostable and recyclable options available, certified by internationally recognized bodies.

📦 Free Sample Policy — Try Before You Order

We believe you should see the quality before committing to a bulk order. Our free sample program makes it easy.

1

Submit Your Request
Contact us with your requirements (size, material, printing needs)

2

Artwork Approval
Our design team prepares artwork proof within 24 hours

3

Sample Production
Physical samples produced in 5–7 business days

4

Free Delivery
Samples shipped worldwide (you cover shipping cost only)

Request Free Sample

Our Core Values

The principles that guide everything we do

Quality First

Every pouch undergoes multi-stage quality control. We never ship substandard product.

Customer Focus

Your success is our success. We provide free design support, dedicated account managers, and responsive communication.

Innovation

We continuously invest in advanced printing technology and new material solutions to help your brand stay ahead.

Sustainability

Eco-friendly material options including compostable films, PCR materials, and recyclable structures.

Ready to Get Started?

Contact us today for a free consultation and custom packaging quote — response within 24 hours.