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HomeAll Real CasesUnpaid Plastic Materials Lead to 13,360 Yuan Judgment Against Buyer and Guarantor

Unpaid Plastic Materials Lead to 13,360 Yuan Judgment Against Buyer and Guarantor

All Real CasesJune 2, 2026 5 min read

Unpaid Plastic Materials Lead to 13,360 Yuan Judgment Against Buyer and Guarantor

Case Overview

A buyer who failed to pay for plastic materials purchased on credit, along with a guarantor who signed a promissory note, were ordered by a court in Eastern China to jointly bear liability for an unpaid debt of 13,360 yuan. The court found that the buyer had breached a valid sales contract and that the guarantor, having provided no specific terms for the guarantee, was obligated to assume joint and several liability for the debt.

Case Background and Facts

In October 2007, Mr. Lou, a buyer, purchased plastic materials from Mr. Xu, a seller. The total amount due for these materials was 13,360 yuan. Mr. Lou failed to pay this amount at the time of purchase. Over the following months, Mr. Xu repeatedly demanded payment. In response, on December 1, 2008, Mr. Lou issued a written promissory note to Mr. Xu. In this note, Mr. Lou promised to pay the full outstanding amount in a single payment before the end of the Chinese New Year. Mr. Mao signed this same document as a guarantor, indicating his intention to secure Mr. Lou’s obligation.

Despite this written promise and the guarantee, Mr. Lou made no payments to Mr. Xu. Mr. Mao also did not fulfill any obligation under the guarantee. After further unsuccessful attempts to collect the debt, Mr. Xu initiated legal proceedings to recover the 13,360 yuan from Mr. Lou and to hold Mr. Mao jointly and severally liable for the debt.

Court Proceedings and Evidence

Mr. Xu filed his lawsuit on September 13, 2010. The court initially assigned the case to a single judge for trial. However, because both defendants could not be located, the court converted the proceeding from a summary procedure to an ordinary procedure on October 22, 2010, and formed a collegial panel to hear the case. A public trial was held on January 24, 2011. Mr. Xu appeared in court. Both Mr. Lou and Mr. Mao, after being properly served with legal notice through public announcement, failed to appear without any justifiable reason.

The primary evidence presented by Mr. Xu was the promissory note dated December 1, 2008, which bore the signatures of both defendants. Because the defendants did not appear, the court considered that they had waived their rights to present evidence and to cross-examine the plaintiff’s evidence. The court reviewed the promissory note and found it to be authentic, legally obtained, and directly relevant to the dispute. The court accepted this document as conclusive evidence of the facts. Based on this evidence and Mr. Xu’s consistent statements, the court found that the facts as alleged by Mr. Xu were fully established.

Court Findings and Judgment

The court held that the facts of the case were clear and the evidence was conclusive. It found that a valid sales contract existed between Mr. Xu and Mr. Lou, and a valid guarantee contract existed between Mr. Xu and Mr. Mao. Both contracts were legally formed and effective. The court determined that Mr. Lou had failed to perform his obligation to pay for the goods.

Regarding the guarantee, the court noted that Mr. Mao had not specified the type of guarantee he was providing when he signed the promissory note. According to applicable law, when the method of guarantee is not agreed upon, the guarantor is presumed to have undertaken a joint and several liability guarantee. This means Mr. Mao is liable to pay the debt if Mr. Lou fails to do so.

The court ruled in favor of Mr. Xu on all claims. The judgment ordered Mr. Lou to pay Mr. Xu the outstanding amount of 13,360 yuan within three days of the judgment taking effect. It further ordered Mr. Mao to bear joint and several liability for Mr. Lou’s payment obligation. The court also ordered both defendants to share the court costs of 134 yuan.

Key Legal Principles

The court applied several key legal principles. A contract becomes effective upon its lawful formation, and parties must fully perform their obligations under the contract. A buyer must pay the agreed price for purchased goods. A guarantee contract is a valid legal agreement where a guarantor agrees to be responsible for a debtor’s obligation. When the method of guarantee is not agreed upon in writing, the law presumes the guarantor is jointly and severally liable, allowing the creditor to demand payment directly from the guarantor without first pursuing the debtor.

Practical Insights

This case illustrates the importance of clear contractual terms. For sellers, obtaining a written promissory note from a buyer can be a critical piece of evidence to prove a debt. Having a third party sign as a guarantor adds a significant layer of security. For guarantors, this case serves as a strong warning. Signing a guarantee without specifying the terms, especially the type of guarantee, can result in full personal liability for the debt. A guarantor who does not specify limited liability may be treated as a joint debtor.

Legal References

Contract Law of the People’s Republic of China: Article 44 (paragraph 1), Article 60 (paragraph 1), Article 159.
Guarantee Law of the People’s Republic of China: Article 6, Article 13, Article 19.
Civil Procedure Law of the People’s Republic of China (2007 Revision): Article 130.

Disclaimer

This article is for informational purposes only and does not constitute legal advice. Consult a qualified attorney for specific legal matters.

This article is rewritten from public court documents for general reading only. It does not constitute legal advice. Consult a qualified attorney for specific legal matters.

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