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About Us
Rizhao Zhengjia Plastic Co., Ltd.
Rizhao Zhengjia Plastic Co., Ltd. was established in 2016 through the upgrading and development of Juxian Yushan Plastic Products Factory. Its team has been deeply engaged in the plastic products industry since 2006.
With a factory building area of 27,000 square meters, the company is a modern manufacturing enterprise integrating R&D, production and sales of plastic products. Relying on excellent product quality and attentive full-process service, it has built a good reputation in the industry and won wide recognition from new and existing customers.
The company mainly operates two core categories of plastic products: injection molding and blow molding. Its injection molding products mainly include catering supporting products such as plastic takeaway containers, sauce cups, milk tea cups, fruit buckets, in-mold labeling takeaway containers, and disposable cutlery including knives, forks and spoons for aviation use, supported by more than 80 professional production lines.
Blow molding products cover packaging and daily-use products such as plastic packaging bags, garbage bags and disposable gloves, equipped with more than 40 sets of blow molding and bag-making production lines. The products are widely used in various scenarios including catering packaging, fresh food storage and general daily packaging, fully meeting the diversified needs of the market. Since its establishment, the company has been market-oriented, continuously promoting capacity upgrading and equipment renewal. It has now formed a large-scale production capacity for plastic products of various specifications and types, capable of efficiently undertaking customers' bulk customization and regular procurement demands, while ensuring delivery efficiency and consistent product quality throughout the process.
Over the years, Zhengjia Plastic has always adhered to the corporate philosophy of "Quality First, Service-Oriented" and the entrepreneurial spirit of "Professionalism, Efficiency, Integrity and Win-Win Cooperation". Strict quality control is implemented throughout the entire process of R&D, production, quality inspection and after-sales service. Relying on a professional R&D team with 20 years of industry experience, a standardized production system and a comprehensive after-sales service system, the company carefully crafts every high-quality product, creates core value for customers with premium products and attentive services, and helps improve the quality of daily life for the public.
We sincerely welcome new and existing customers to visit our company for inspection and business negotiation, and join hands to seek common development and create a better future!
Why Choose Us
We supply high-quality virgin PP disposable food containers. Food-safe, heat-resistant and suitable for packing, refrigeration and microwave use. Backed by strict quality checks, competitive factory pricing, fast delivery and dedicated full-service support.
Direct Factory Supply
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15-Day Fast Delivery
Equipped with over 80 injection molding machines and more than 40 blow molding lines, with an annual production capacity of ten thousand tons. Standard products are delivered within 15 days, and urgent orders can be scheduled with priority.
20 Years of Technical Expertise
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Full-Process Quality Control
Founded in 2006, we have nearly 20 years of experience in plastic products. We independently control the entire chain from mold design, raw material proportioning, injection molding production to factory inspection, supported by a complete quality control system.
Food-Grade Certification
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Global Export Qualifications
All our food container products comply with food contact material standards, support international certification and testing, and have been stably exported to many countries.
Flexible Customization
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Mold Rebate
Customization of LOGO, size, color and compartment structure is available. Mold costs are eligible for tiered rebates, and full mold cost reimbursement is offered when order quantity reaches the target.
Take a look at our clients' opinions
Finally found a supplier with consistent quality. Their containers don’t warp under heat, and the lock is tight – no more leak complaints. well packed. Will reorder.
Jessica
Restaurant Manager
We tested 5 different Chinese suppliers. This one stood out. The black PP rectangular containers stack beautifully, no cracked corners even after container shipping. Highly recommended.
David.Chen
Every month, I buy 20 to 30 containers of takeout boxes from China, and quality consistency has always been my biggest concern. I personally audited this factory – from the injection molding machines to the QC lines – everything was professional and well-managed. They provide complete test reports (drop, heat, and load tests), which made customs clearance much smoother. We've been working together for 18 months now, and I will definitely keep ordering from them.
Mr.Tan
I've been doing catering for over ten years and have tried 7 or 8 container suppliers. Some were cheap but got soft when heated. Others had okay quality but were always out of stock. This one is the steadiest so far. Their black round bowls with vented lids keep food warm for 30 minutes without warping, and their on-time delivery for full containers is 100%. Last year before Chinese New Year, I had an urgent order – they even squeezed out a production line for me. With that attitude, I'm sticking with them long term.
Assan
I run a food service in Australia that provides religious meals to underprivileged believers. These six-compartment trays are a perfect fit – lots of sections so we can offer a good variety of dishes. They're reasonably priced, and they survive long transport routes without cracking or breaking. They have a wide range of products, so you can do one-stop shopping for many varieties without having to run around to different stores.I will definitely be reordering.
Peter M.
Melbourne, Australia
We do group meal delivery for about 15 companies in Shanghai – over 3,000 lunch boxes a day. Before, the containers were either too soft with lids that wouldn't snap shut, or they'd collapse when stacked. After switching to this supplier, all those issues are gone. Their injection-molded square containers are tough, heat-resistant, and stack 10 high with no problem. The best part is the after-sales. Once, a couple of boxes got crushed in shipping – I sent them a video, and they sent replacements the same day. That's the kind of service you want for the long haul.
Mr. Zhang
Shanghai, China
Sustainable Development: Our Actions and Your Choices
As a professional manufacturer of injection molded lunch boxes, Rizhao Zhengjia Plastic Co., Ltd. always considers environmental responsibility in its production decisions. We firmly believe that sustainable development is not just a slogan, but a long-term process composed of concrete actions.
Our production improvement
We have fully adopted energy-saving injection molding equipment and effectively reduced energy consumption per unit product by optimizing production processes. At the same time, we implement internal recycling and reuse of all waste generated during the production process to ensure that it does not enter the external environment.
Biodegradable Material Solutions
To meet the diverse environmental requirements of various markets and clients, we have established the capability to manufacture food containers using biodegradable materials. We are prepared to collaborate with you to customize specific material solutions tailored to the needs of your target market.
Our Stance
We are committed to continuously optimizing our production methods—while strictly upholding product quality and food safety standards—and to offering our clients more environmentally responsible material choices. We avoid exaggeration and concealment; instead, we approach every partnership with professionalism and integrity, working together to advance the cause of sustainable development.
We look forward toworking with you.
Feel free to reach out for any queries. We would be happy to help!
