1 Scope
This standard herein (the "Standard") stipulates the quality standards, classification standards and inspection methods for yellow corn delivered at DCE.
The Standard applies to standard products and substitute products delivered under the corn futures contract of DCE.

2 Cited rules and standards
The provisions of the following documents are incorporated as provisions of the Standard by reference. For those cited documents noted with dates, all of their following amendments (excluding corrections) and revised versions shall not be applied to the Standard; for those without noted dates, their latest versions shall be applied to the Standard.
GB 1353-2009 Corn
GB/T 20570-2006 Rules for Evaluation of Corn Storage Quality

3 Definitions
Definitions under this Standard shall be interpreted in accordance with GB 1353-2009 and GB/T 20570-2006.

4 Quality standards
4.1 Quality requirements for standard products delivered under corn futures contract

Volume Weightg/L

Impurity (%)

Moisture (%)

Unsound Kernels (%)

Odor and Color


Moldy Kernels







4.2 Discount by quality difference under corn futures contract


Requirements for Standard Products

Quality Requirements for Substitutes

Discount (CNY/MT)

Volume Weight(g/L)


≥650 and <675




>14.0 and <14.5


Moldy Kernels(%)


>2.0 and ≤4.0


 4.3 Corn storage quality requirements

Load-in: suitable to be stored; load-out: suitable for storage or slightly not suitable for storage

4.4 Total unsound kernel rate of bulk grain when loaded out of the warehouse shall be ≤ 11%.

4.5 Hygienic inspection and foliage quarantine shall be subject to China's relevant standards and rules. Hygienic standards shall be subject to the Hygienic Standard for Feeds (GB 13078).

5 Inspection methods

Subject to GB 1353-2009 and GB/T 20570-2006.

 6 Additional note

The Standard shall be subject to the interpretation of DCE.

Disclaimer: This English translation may be used for reference only. In cases there is any discrepancy between the English version and the original Chinese version, the original Chinese version shall prevail. Dalian Commodity Exchange may change or update this English translation without any prior notice and shall accept no responsibility or liability for damage or loss caused by any error, inaccuracy, misunderstanding, or change with regard to this English translation.

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