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Agriculture Bag, Co & CHK Manufacturing, Inc

About Our Company

Established in 1985, Agriculture Bag Company and C.H.K. Manufacturing, Inc. manufacture and import various plastic woven bags and offering a variety of packaging solutions. Our advantage is the well-equipped manufacturing plant, the best material resources, strict quality control, and an experienced team. We are dedicated to finding cutting-edge solutions and providing quality services. To learn more, browse through our site or contact us directly.

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Woven Polypropylene Bags

Exceptional Products


Feature Selections

Ties aside - allow bags to be tied shut easily.
Laminated - PP lamination for moisture control.
Anti skid - making bags stack easier and steady.
Gusseted - allowing the bag to open up widthwise.
EZ open - allows for the end user to open the bag easily.
Top hemmed - the top is folded over and sewn for a smooth edge.
Paper laminated - giving the bag good quality print and more strength.
UV protection - added to PP to allow bags to be left outside with sunlight
BOPP bags - superior strength and excellent print quality, also water resistant

Woven Polypropylene Bags for Dry Goods 

Woven Polypropylene bags are widely used for material packing for fertilizer, cement, sand, food grains, sugar, cattle feed, and many other industries. Woven PP bags have the advantages of lighter weight, higher strength, better corrosion resistance, and tear resistance. These bags allow sufficient passage of air to the packed items and ensure the phenomenon of ‘breathing’ space in packed grains. These moisture proof woven sacks are perfect for packing of rice, spices, flour, fertilizers, sugar, agro products, and other materials.


Benefits of Woven Polypropylene Bags

Woven polypropylene bags are a durable and cost-effective way to package a wide range of products and provide a strong packaging solution for your products with tear resistance, ideal for transport and storage.


Printing Woven Polypropylene Bags

Woven polypropylene bags can be custom printed to help make your product stand out. We offer in house printing, with both front print and back print up to 6 colors. Our sales team can assist you in designing the perfect print for your bag. The minimum print run is 1,000 bags, and terms and conditions apply. We also offer BOPP lamination woven polypropylene bags which allow you to achieve 100% print coverage. These bags are best suited for high graphic designs which have been digitally created. We can assist you with the artwork to help create the most dynamically pleasing bag possible.
Minimum print runs and terms and conditions also apply.

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FIBC - Flexible Intermediate Bulk Containers

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Corner Loop, Cross Corner Loop, Single Loop, Two Loop, Tunnel Loop.


Filling Spout, Conical Top with Spout, Duffle Top / Skirt, Open Top, Top with Flap.


Discharge Spout, Discharge Spout with Iris Closure, Flat Bottom, Discharge Spout with Petal Closure, Bottom with Flap.

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Circular FIBC Bag Construction

The circular bag is made from a sheet of tubular fabric that forms all sides of the bag, allowing for stitching only to the top and bottom of the bag. Although the structure is tubular, when filled, the circular bag is still similar to a square container, and retain the shape to the smallest structural type when filling.

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U-Panel FIBC Bag Construction

The U-shaped panel bag consists of three main panels - one extending over the bottom and two sides and two additional pieces of fabric sewn into the two sides of the U piece that form the other two sides. Similar to other structural types, U-shaped panel bags will remain square when filled. U-panel bags are the industry standard and are the most popular type of construction, offering high safety workload (SWL) and ruggedness.

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Baffle 4-Panel FIBC Bag Construction

The four-panel bags are stitched together by four separate sheets to form a square structure. When filled, the four-panel bags will retain their square shape, similar to other structural types. Typically, the 4-panel bag will retain its shape better than the U-panel bag, and the U-panel bag will retain its shape better than the circular bag. The 4-panel bag is ideal for storage because it retains its shape when filled.

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FIBC - Flexible Intermediate Bulk Containers


FIBC is a very cost-effective packaging option for the transport and storage of dry bulk materials. They are either made of flat polypropylene fabric (PP) or a circular polypropylene fabric in coated or uncoated form. The weight of the fabric will vary depending on the safe working load (SWL) and the safety factor (SF) requirements.

We are a trusted and reliable manufacturer and supplier of Flexible Intermediate Bulk Containers – FIBC Bags which are also known as Bulk Bags or Jumbo Bags. We offer custom tailored FIBC bags or Jumbo bags to suit the individual requirement or custom requirements such as u + 2 and circular bags, ventilated bags, pre-shaped liner bags, glued liner bags, certified food grade bags, dustproof bags, baffle bags, tunnel lift loop bags, single loop and two loop bags, UN Bags etc. Our FIBC bags are ideal and cost-effective packing used for storage and transportation of a wide range of materials such as chemicals, food, metal, etc. These bags have a large storage capacity.

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We produce a custom range of FIBC bags or Jumbo bags as per client’s requirement. We offer bags for both single-trip (5:1) and multi-trip (6:1 or 8:1) purposes depending on the bag design and size. Our SWL Range of the bags starts from 500 lbs up to 5,000 lbs. Its precise design and construction standards make these bags suited for a wide range of end products like Soda Ash, Dyes, Cement, Chemicals, and others.


Benefits of FIBC Jumbo Bags:

  • One can reuse these bags by folding it

  • Reduces storage and transportation costs

  • Flexible and strong

  • Easy to recycle

  • Available in diverse dimensions and sizes

  • Available at an effective price

  • Diverse and easy facilities of filling, lifting and discharging

  • Custom nature for material, plant and distribution system

  • Utilize for hazardous chemicals packaging (specified in UN Chapter 6.5 Recommendations)

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FIBC solutions for various industries

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Agricultural Products

Raw agricultural products like potatoes, onions, nuts or beans can be filled in big bags for agricultural products. Agricultural products big bags are often made from ventilated fabric which allows air to circulate inside-out the fibc.

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Seeds FIBC bags can be designed as standard four-loop, form stable or one- or two loop fibc. Especially form stable big bags are popular for packing seeds as seeds are usually stored over winter and storage room is critical for many producers. Seed FIBC often has a company printing for marketing purposes.

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Milk Powder

Milk Powder big bags similarly to those for sugar meet high requirements on quality and food safety. Extreme dust proof sewing is used to protect the milk powder from leakage and to from moisture.

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Animal Feed

Animal feed is often filled into big bags as huge quantities are needed. Animal feed fibc are either designed as standard four loop big bags or one-or-two loop big bags and often include a company printing. They are mostly made from uncoated fabric.

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FIBC solutions for various industries

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Construction materials

Construction material companies usually use standard big bags with a closed bottom and an open top. Sand FIBC requires dustproof sewing while for stones it is not used.

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Recycled Resources

FIBC bags are often used to pack recycled resources, especially recycled plastics. Recycling materials are either packed in standard big bags or Q-bags. The fabric of the big bags used in the recycling industry are sometimes with coated fabric and have often a printing. These fibc come in various designs regarding lifting, filling and discharging.

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The fertilizer industry 

Fertilizer companies in the organic or the inorganic business usually use standard big bags with a spout bottom and an open top.



Chemicals have a wide range of characteristics, and an equally wide range of big bags exists to suit them. Some types used by the chemical industry are Form stable fibc, Fibc with PE Inliner, and Antistatic fibc. 

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Graphic Design Services

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Graphic Design Services

Our graphics team can build your graphics for optimum reproduction during the printing process. We offer different kinds of digital proofs to ensure your graphics will print the way you want them without the costs associated with an actual press run. We offer mounted or unmounted printing plates for the flexographic printing process. Our years of experience in the packaging industry give us the knowledge and expertise to ensure your printing plates are press ready.

Contact Us

960 98th Ave
Oakland, CA 94603

TEL: 510-632-5637

FAX: 510-632-2056

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