United States Cellular Corporation 202

The 2023 Annual Incentive Plan is intended to motivate and reward associates for performance that drives achievement of UScellular’s business goals. We measure performance using both financial and non-financial goals that are tied to our business strategy. Incentive awards are based on performance results for UScellular and each participant’s individual performance and behavior as exemplified by the Company’s Dynamic Organization (“D.O.”) values.

All UScellular associates hired on or before September 30, 2023 are eligible to participate in this 2023 Annual Incentive Plan (“Plan”) unless they:

•are classified as a temporary associate or contractor; or

•are in jobs classified as non-exempt in the customer service or financial services functions within the Customer Support Division; or

•participate in any other incentive compensation plan at USCC.

Plan eligibility is also conditioned on satisfaction of any additional eligibility requirements set forth in the attached Administrative Guidelines. Eligibility for the Plan is not a guarantee of an incentive award payment.

The 2023 Annual Incentive Plan has two performance components (company and individual performance for the plan year) which come together to determine an associate’s award. The Plan components and weightings are provided below:

(1)70% weighted on UScellular company performance as measured against financial metrics and 10% weighted on the UScellular Chair's Assessment of UScellular's performance (refer to UScellular Chair Assessment section below)

The 2023 Annual Incentive Plan company performance is measured by performance against the following three financial metrics with weightings and definitions provided below. Actual performance will be assessed against the targeted performance for each performance metric.

Consolidated Total Service Revenues: Total service revenues determined on a consolidated company-wide basis and in a manner consistent with UScellular’s presentation of total service revenues for external reporting purposes.

Consolidated Operating Cash Flow: Operating cash flow determined on a consolidated company-wide basis and in a manner consistent with UScellular’s presentation of Adjusted OIBDA (Operating income before depreciation, amortization, accretion, gains and losses) for external reporting purposes, and further adjusted to remove expenses associated with the annual incentive and performance share unit plans.

Consolidated Capital Expenditures: Capital expenditures determined on a consolidated company-wide basis and in a manner consistent with UScellular’s presentation of capital expenditures for external reporting purposes.

The incentive payouts will be determined by the level of achievement against each metric. If any metric is not achieved at the minimum level, there will be no incentive paid with respect to that metric. The minimum and maximum payout levels reinforce the Company’s pay for performance philosophy.

Incentive payouts between the minimum and target performance levels and between the target and maximum performance levels will be computed by interpolation.

Each associate’s performance will be evaluated and a performance rating assigned based on achievement of individual performance goals established for the plan year. Any incentive for individual performance will be payable according to the guidelines shown in the table below, subject to appropriate approval.

The UScellular Chair assesses UScellular’s overall company performance for the plan year and may consider the following factors and other information deemed relevant in determining the level of attainment for this measure.

•Achievement of key goals and objectives provided to the UScellular board of directors.

•Accomplishing / making commendable progress on major initiatives for the year to the extent not covered under the key goals and objectives provided to the board of directors.

•Developing and enhancing strategies and plans that strengthen the Company’s ability to successfully compete in the marketplace.

The Plan is subject to the Administrative Guidelines attached. There are no oral or written agreements or understandings between UScellular and the participants affecting or relating to this Plan not referenced herein. If any participant fails to adhere to the ethical, legal and other standards as referenced by UScellular policy, UScellular shall have the right to revoke this Plan, reduce or eliminate compensation as it applies to the violator, or any other remedy as provided by corporate policy or law.

Any compensation earned or paid pursuant to this Plan is subject to forfeiture, recovery by UScellular or other action pursuant to any clawback or recoupment policy which UScellular may adopt from time to time, including without limitation any such policy which UScellular may be required to adopt under the Dodd-Frank Wall Street Reform and Consumer Protection Act and implementing rules and regulations thereunder, or as otherwise required by law.

This Plan shall not be construed as an employment contract or as a promise of continuing employment between UScellular and the associate. Employment with UScellular is terminable at will, i.e., either the participant or UScellular may terminate the relationship at any time, with or without cause.

The 2023 Annual Incentive Plan, as set forth in this document, represents the general guidelines UScellular intends to utilize to determine the incentives, if any, that will be paid. Results associated with acquisitions and / or divestitures will be evaluated on a case-by-case basis to determine whether adjustments to target or actual results are warranted. The UScellular Chair in his/her/their discretion may adjust targets or actual results to reflect unanticipated events. UScellular reserves the right to modify or terminate the Plan at its sole discretion, at any time (including during or following the applicable plan year) and for any reason, with or without written notification and without regard to the effect that any such action may have on any associate’s incentive or potential incentive. UScellular shall have the full power and authority to interpret and administer the Plan and shall be the sole arbiter of all matters of interpretation and application of the Plan.