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HomeAll Real CasesAppeal Dismissed in Cardboard Box Debt Dispute – CNY 103,760

Appeal Dismissed in Cardboard Box Debt Dispute – CNY 103,760

All Real CasesMay 14, 2026 4 min read

The appellate court dismissed an appeal brought by a cardboard box factory and its owner against a lower court ruling that ordered them to pay CNY 103,760 in outstanding debts for paper materials. The case arose from a business relationship over two years, where the plaintiff supplied paper goods to the factory. After a final settlement was documented in a signed IOU, the factory made partial payments through returned goods. However, the remaining balance remained unpaid, leading the plaintiff to sue for the full amount.

The dispute involved a factory based in Eastern China City, established as a sole proprietorship in 2006, with Mr. Gong as its responsible person. Between November 2008 and December 2010, the plaintiff, Mr. Shen Tu, supplied paper materials to the factory. On December 2, 2010, the parties reconciled their accounts, and Mr. Gong issued a written IOU acknowledging a debt of CNY 143,000. The IOU stated that all previous delivery notes were void and that Mr. Shen Tu would assist the factory in selling certain cardboard boxes. After that, the factory shipped boxes worth CNY 39,240 to Mr. Shen Tu, who sold them and kept the proceeds. The factory then owed CNY 103,760. Mr. Shen Tu filed suit in 2011.

During the appeal hearing, the factory and Mr. Gong argued that the IOU was signed under a material mistake. They claimed it only reflected total invoiced amounts, not actual outstanding debt, and that they had already overpaid. They also challenged Mr. Shen Tu’s legal standing, contending that the real seller was a different company, not Mr. Shen Tu individually. In support, they submitted business registration records, a mediation agreement, and old delivery notes showing that a Mr. Wang, former legal representative of that company, had signed for deliveries. Mr. Shen Tu responded that the IOU was clear and that all dealings were with him personally.

The court found that the IOU was a comprehensive settlement of all transactions before December 2, 2010. The document explicitly stated the amount owed and included additional terms about delivery notes and assistance with sales. The court noted that Mr. Gong, as an experienced business operator, fully understood the consequences of issuing such a binding document. The court rejected the claim of material mistake, as it lacked factual support. Regarding the plaintiff’s identity, the court examined the overall conduct of the parties. It observed that the factory made payments to Mr. Shen Tu, the IOU was addressed to him, and he received subsequent box shipments. The court held that a seller may use a third party for delivery, so the signature of Mr. Wang on some delivery notes did not prove the seller was a different entity.

The legal analysis centered on the formation of a valid contract and the liability of a sole proprietorship’s investor. Under relevant law, a written settlement such as the IOU constitutes conclusive evidence of the debt unless proven otherwise. The court emphasized that the burden was on the factory to show clear error or fraud, which it failed to do. Additionally, the court applied the principle that a personal representative of a sole proprietorship bears supplementary unlimited liability when the business’s assets are insufficient. Here, the evidence consistently pointed to Mr. Shen Tu as the counterparty in the transaction, making him the proper plaintiff.

The appellate court upheld the original judgment in full. The factory was ordered to pay CNY 103,760 within ten days, and if its assets were insufficient, Mr. Gong was to cover the shortfall from personal funds. The appeal costs were assessed against the defendants. This ruling reaffirms that clear written settlements in commercial disputes are given strong legal weight and that sole proprietors cannot avoid personal liability for unpaid business debts. Parties should exercise care when signing debt acknowledgments, as courts will enforce them strictly.

Disclaimer: This article is for informational purposes only and does not constitute legal advice.

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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