Nanjing i4U Software Technology Co., Ltd. (“i4U”) engages in cloud service software product operated and sold by the data center located in the People’s Republic of China (excluding Hong Kong, Macao and Taiwan). This statement applies to the said service and any other i4U services displayed by or linked to this statement. Such services are collectively called “service” in this statement.

Article 1 Terms and definitions

1.1 Client: Individuals or legal entities that, directly or through agent partners of i4U, in different privacy rights, purchase, subscribe for or use products or services of i4U or any other products or services of a third party for which i4U acts as an agent. Client is hereinafter referred to as “you” in this statement.

1.2 Definitions of technical terms

1.2.1 Platform operation: Time period that i4U service cloud platform is available for use.

1.2.2 Applicable month duration: Number of days in a calendar month of applicable service fee, during which you are a service subscriber.

1.2.3 Service fee of applicable month: Total fee that you have paid for service in a month of applicable service fee.

1.2.4 Downtime: To be defined for each kind of service in the following special service terms. Except Ali cloud service, downtime does not include scheduled downtime. Downtime does not include the period when service is not applicable due to limitations below and in special service terms.

1.2.5 External access: Bidirectional network traffic sent and received from public IP address via supported protocol (e.g. HTTP and HTTPS).

1.2.6 Event: (i) an event or (ii) a group of events resulting in downtime.

1.2.7 Management portal: Web interface provided by i4U service platform; client can manage service through the interface.

1.2.8 Scheduled downtime: Downtime caused by maintaining or upgrading network, hardware and service. Before downtime, we will, at least five (5) days in advance, make an announcement or notify you.

1.2.9 Service level: Performance index that service delivered by i4U shall reach as agreed upon by i4U in this SLA.

1.2.10 Service resource: Individual resource available for use in a service item.

1.2.11 Support period: Time period that a service function or its compatibility with an individual product or service is supported.

1.2.12 User minutes: Minutes calculated with this formula: (Total minutes in a month – Total minutes of all scheduled downtime) * Total number of users.

1.2.13 Minutes of use: Total minutes of using specified i4U service in i4U service cloud platform in a billing month.

1.2.14 Maximum available minutes: Total available minutes of using all the i4U service cloud platforms subscribed for in a specified i4U service cloud platform in a billing month.

1.2.15 Message: Any information sent to devices registered in i4U or received from registered devices through i4U service cloud platform under any protocol supported by this service.

1.2.16 Device identity operation: Those operations that create, read, update or delete device identity registration information on i4U.

Article 2 Exclusive provisions

2.1 This SLA and any applicable service level are not applicable to any following performance or availability:

2.1.1 Factors that are out of reasonable control of i4U, for example natural disaster, war, terroristic act, riot, governmental act, and network or device failure outside i4U data center (including your work place or between your work place and i4U data center);

2.1.2 Use service, hardware or software not provided by i4U, including but not limited to problems caused by insufficient bandwidth or about third party software or service.

2.1.3 After i4U suggests that you modify the service use, you fail to make corresponding modifications;

2.1.4 Problems occurred during preview version, prerelease version, test version or demo version of service, function or software, or related to these versions (to be determined by i4U);

2.1.5 You perform unauthorized operation or fail to perform necessary operations, or operations of your employee, agent, contractor, supplier, any one who gets access to i4U network with your password or device or you fail to observe relevant safety practices;

2.1.6 You fail to follow any required configuration requirements, use supported platform, observe permitted use policy or use the service in a way against functions or features of your subscribed service or against instructions released by i4U, for example you attempt to perform unsupported operations;

2.1.7 Your input, command or parameter is incorrect, (e.g.you request to visit a file that does not exist);

2.1.8 You attempt to perform operations that exceed your authority or lead to suspected uncivilized behavior limited by i4U;

2.1.9 The service function you are using is not in relevant support period or you have booked corresponding license at event occurrence, but not made a payment yet.

Article 3 i4U service level commitment

3.1 Determination of downtime: Total minutes used in all the i4U service cloud platforms subscribed for in a specified i4U service cloud platform during the period that i4U service cloud platform is not available. Suppose you attempt to send or receive messages or perform device identity operation in i4U service platform continuously in one minute, but only error code is returned, or no success code is returned within 5 minutes, it can be determined that i4U service cloud platform center is not available in the minute.

3.2 Equation for calculating the percentage of monthly normal service time: Percentage of monthly normal service time = (maximum available minutes – downtime)/maximum available minutes.

3.3 i4U service level commitment

Article 4 Periodic updates and application of service level agreement

4.1 The service level agreement of this i4U service cloud platform (“SLA”) is part of your i4U service cloud platform license agreement (the “Agreement”). Terms not defined in this SLA shall have the same meanings as they are in the Agreement. This SLA applies to i4U online service (one service or several services) listed herein, but is not applicable to services of any independent brands provided together with i4U online service or associated with i4U online service or any local software that is a part of any service. i4U will not modify your SLA terms or conditions during your initial subscription term, but for subscription renewal, currently effective SLA version at your renewal will apply to your renewal period. Anyway, i4U will notify you of any material adverse change of this SLA at least 90 days in advance.