3 San Bian Science & Technology Co.Ltd(002112) 021 consolidated financial statements and audit report
catalogue
Content page
Audit report 1-5
Consolidated balance sheet 6-7
Company balance sheet 8-9
Consolidated income statement 10
Company profit statement 11
Consolidated cash flow statement 12
Cash flow statement of the company 13
Consolidated statement of changes in owner's equity 14-15
Statement of changes in owner's equity of the company 16-17
Notes to financial statements 18-108
Audit report
Zhong Hui Zi (2022) No. 00630 Jiangsu Yitong High-Tech Co.Ltd(300211) all shareholders:
1、 Audit opinion
We have audited the financial statements of Jiangsu Yitong High-Tech Co.Ltd(300211) (hereinafter referred to as Jiangsu Yitong High-Tech Co.Ltd(300211) company), including the consolidated and company's balance sheet as of December 31, 2021, the consolidated and company's income statement, consolidated and company's cash flow statement, consolidated and company's statement of changes in owner's equity and notes to relevant financial statements in 2021.
In our opinion, the attached financial statements are prepared in accordance with the provisions of the accounting standards for business enterprises in all material aspects and fairly reflect the consolidated and financial position of Jiangsu Yitong High-Tech Co.Ltd(300211) company as of December 31, 2021 and the consolidated and operating results and cash flow of the company in 2021.
2、 Basis for forming audit opinions
We conducted our audit in accordance with the auditing standards for Chinese certified public accountants. The "responsibilities of certified public accountants for the audit of financial statements" in the audit report further expounds our responsibilities under these standards. In accordance with the code of professional ethics for Chinese certified public accountants, we are independent of Jiangsu Yitong High-Tech Co.Ltd(300211) company and have fulfilled other responsibilities in terms of professional ethics. We believe that the audit evidence we have obtained is sufficient and appropriate, which provides a basis for our audit opinion. 3、 Key audit matters
The key audit matters are the most important matters that we consider to audit the current financial statements according to our professional judgment. The response to these matters is based on the overall audit of the financial statements and the formation of audit opinions. We will not express separate opinions on these matters.
Recognition of income
1. Item description
Jiangsu Yitong High-Tech Co.Ltd(300211) company is mainly engaged in the production and sales of CATV network equipment, digital user information network equipment, sensors and other products and intelligent monitoring engineering services. See notes 3.33 and 5.37 to the financial statements for the relevant revenue recognition methods and the amount of main business revenue in 2021. In 2021, the main business income of Jiangsu Yitong High-Tech Co.Ltd(300211) company was 24650555419 yuan, including product sales income of 20069235162 yuan and intelligent monitoring engineering service income of 4581320257 yuan. Because the main business income is significant and is a key performance indicator, and the building intelligent engineering service business in the intelligent monitoring engineering service is a business that continues to perform within a certain period of time, it uses the performance progress to recognize the relevant income, which involves the important judgment and accounting estimation of the management. Therefore, we regard the product sales revenue and the intelligent monitoring engineering service revenue recognized by the performance progress as the key audit matters.
2. Audit response
2-1. For product sales business income
(1) Understand and evaluate the design of internal control in the sales process of Jiangsu Yitong High-Tech Co.Ltd(300211) company from approving customer orders to recording sales revenue, and test the effectiveness of key control implementation.
(2) Through sampling inspection of sales contracts and interviews with management, this paper analyzes and evaluates the factors related to the time point of product control transfer related to the recognition of product sales revenue, including the acquisition of real collection rights, the transfer of ownership and physical objects, the transfer of main risks and rewards, and the time point when customers accept products, So as to evaluate whether the recognition policy of product sales revenue of Jiangsu Yitong High-Tech Co.Ltd(300211) company complies with the provisions of accounting standards for business enterprises.
(3) The product sales revenue was sampled and tested, and the supporting documents related to revenue recognition were checked, including sales contracts or orders, sales invoices, delivery orders signed by customers and third-party logistics information.
(4) Combined with the reply of accounts receivable, confirm the amount of product sales revenue of main customers to confirm the accuracy of product sales revenue. (5) For major related party sales, understand the transaction background and customer needs, check relevant transaction data and judge the authenticity of the transaction; Query the market information of traded commodities, analyze and review the transfer pricing report data, and evaluate the fairness of the sales price;
(6) Perform a cut-off test on the sales revenue recognized before and after the balance sheet date to evaluate whether the product sales revenue is recognized in an appropriate period. 2-2. Intelligent monitoring of engineering service income confirmed by performance progress
(1) Understand and evaluate the design of internal control related to the intelligent monitoring engineering service business of Jiangsu Yitong High-Tech Co.Ltd(300211) company, and test the effectiveness of key control implementation.
(2) Analyze the gross profit margin of major projects and compare the current and previous similar projects to analyze whether the project income is reasonable.
(3) Check the business and financial data of main projects, including project contract, cost budget, project progress data, supervision report, completion acceptance data, cost audit data and settlement and collection data, and check whether Jiangsu Yitong High-Tech Co.Ltd(300211) company's calculation of project performance progress and income is accurate.
(4) Send a letter to the entrusting party of the main project and check the contract amount and performance progress of the project.
Information covered, but excluding the financial statements and our audit report.
Our audit opinion on the financial statements does not cover other information, and we will not issue any form of assurance conclusion on other information.
In combination with our audit of the financial statements, our responsibility is to read other information and consider whether other information is materially inconsistent with the financial statements or the information we have learned in the audit process, or there seems to be material misstatement.
Based on the work we have performed, if we determine that there is a material misstatement in other information, we should report that fact. In this regard, we have nothing to report.
5、 Responsibilities of management and governance for financial statements
The management of Jiangsu Yitong High-Tech Co.Ltd(300211) company (hereinafter referred to as the management) is responsible for preparing the financial statements in accordance with the provisions of the accounting standards for business enterprises to achieve a fair reflection, and designing, implementing and maintaining necessary internal control so that the financial statements are free from material misstatement caused by fraud or error.
When preparing the financial statements, the management is responsible for evaluating the going concern ability of Jiangsu Yitong High-Tech Co.Ltd(300211) company, disclosing matters related to going concern and applying the going concern assumption, unless the management plans to liquidate Jiangsu Yitong High-Tech Co.Ltd(300211) company, terminate operation or have no other realistic choice.
The management is responsible for supervising the financial reporting process of Jiangsu Yitong High-Tech Co.Ltd(300211) company.
6、 Responsibilities of certified public accountants for the audit of financial statements
Our goal is to obtain reasonable assurance on whether the financial statements as a whole are free from material misstatement due to fraud or error, and issue an audit report containing audit opinions. Reasonable assurance is a high-level assurance, but it does not guarantee that the audit performed in accordance with the audit standards will always be found when a major misstatement exists. Misstatement may be caused by fraud or error. If it is reasonably expected that the misstatement alone or in summary may affect the economic decisions made by the users of the financial statements based on the financial statements, the misstatement is generally considered to be significant.
In the process of carrying out the audit work in accordance with the audit standards, we use professional judgment and maintain professional doubt. At the same time, we also perform the following work: (1) identify and evaluate the risk of material misstatement of financial statements due to fraud or error, design and implement audit procedures to deal with these risks, and obtain sufficient and appropriate audit evidence as the basis for issuing audit opinions. Since fraud may involve collusion, forgery, intentional omission, misrepresentation or override of internal control, the risk of failing to find major misstatement caused by fraud is higher than that caused by error. (2) Understand the internal control related to audit in order to design appropriate audit procedures, but the purpose is not to express an opinion on the effectiveness of internal control.
(3) Evaluate the appropriateness of accounting policies selected by the management and the rationality of accounting estimates and related disclosures.
(4) Draw conclusions on the appropriateness of management's use of going concern assumptions. At the same time, according to the audit evidence obtained, draw a conclusion on whether there are major uncertainties in the matters or circumstances that may lead to major doubts about the sustainable operation ability of Jiangsu Yitong High-Tech Co.Ltd(300211) company. If we conclude that there is significant uncertainty, the auditing standards require us to draw the attention of statement users to the relevant disclosures in the financial statements in the audit report; If the disclosure is insufficient, we should express a non unqualified opinion. Our conclusions are based on the information available as of the date of the audit report. However, future events or circumstances may cause Jiangsu Yitong High-Tech Co.Ltd(300211) company to be unable to continue its business.
(5) Evaluate the overall presentation, structure and content of the financial statements, and evaluate whether the financial statements fairly reflect relevant transactions and events.
(6) Obtain sufficient and appropriate audit evidence on the financial information of entities or business activities in Jiangsu Yitong High-Tech Co.Ltd(300211) company group to express an audit opinion on the financial statements. We are responsible for guiding, supervising and implementing the group audit, and take full responsibility for the audit opinions.
We communicated with the management on the planned audit scope, schedule and major audit findings, including the internal control defects that we identified in the audit.
We also provide a statement to the management that we have complied with the professional ethics requirements related to independence, and communicate with the management all relationships and other matters that may reasonably be considered to affect our independence, as well as relevant preventive measures.
From the matters communicated with the management, we determine which matters are the most important for the audit of the current financial statements, thus constituting key audit matters. We describe these matters in the audit report, unless laws and regulations prohibit the public disclosure of these matters, or in rare cases, if the negative consequences of communicating a matter in the audit report are reasonably expected to exceed the benefits in the public interest, we determine that we should not communicate the matter in the audit report. (no text below)
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Zhonghua Certified Public Accountants (special general partnership) Chinese certified public accountant Liu Wenhua
(project partner)
Chinese certified public accountant Zhu Liangmin
Shanghai, China, March 11, 2022
Consolidated balance sheet
Prepared by: Jiangsu Yitong High Tech Co., Ltd. December 31, 2021 unit: Yuan
Note no. of the project from December 31, 2021 to December 31, 2020
current assets
Monetary capital Sunresin New Materials Co.Ltd Xi'An(300487) 9308615776737835 5.1
Trading financial assets - 13042402172 5.2
Derivative financial assets --
Notes receivable
