Your 401(k) plan is taking a bold new pathYour account is moving to Empower Retirement effective September 19, 2018

Empower named Retirement Leader of the Year.*

Empower helps 8.5 million people save for retirement.†

* 23rd annual Mutual Fund Industry Awards, 2016.

† As of March 31, 2018. Information refers to all retirement businesses of Great-West Life & Annuity Insurance Company and its subsidiaries and affiliates, including Great-West Life & Annuity Insurance Company of New York, marketed under the Empower Retirement brand.

At Vulcan Materials Company (“Vulcan”), we are committed to seeking out total reward solutions that benefit our workforce. In doing so, we are pleased to announce that beginning September 19, 2018, the Vulcan 401(k) Plan (“plan”) will be administered by Empower Retirement.

This change is designed to give you more ways to access and manage your retirement account, improve your overall retirement planning experience, and empower you to make the journey to retirement as rewarding as every day after.

Same great plan features as before:• Dollar-for-dollar match on the first 6% of eligible pay

• Annual employer contribution at a minimum 3% of eligible pay

• Annual auto-contribution increase to help you reach your goals

• Continued access to advisory services to help with investing (Empower Retirement Advisory Services are offered by Advised Assets Group, LLC, a registered investment.)

Plus some new, updated or enhanced features at Empower such as:• In-plan Roth conversions

• Updated fund line-up

• Mobile app giving you account access at your fingertips (search “Empower Retirement” in the Apple App Store). The release of the Empower Retirement app is expected in late 2018 for Android users.

• Enhanced on-line retirement planning tool that estimates your monthly income in retirement, including healthcare expenses

• Extended service center hours

When it comes to saving,

CRUSH IT!

Get more information about the transition online at vulcan401k.com.

What happens next

The transition to Empower is designed to be as smooth and easy as possible. You do not need to do anything at this time unless you want to make changes to your account currently with Alight.

Contact Empower at: 833-862-4015 (833-VMC-401k)vulcan401k.com

Retirement representatives are available Monday through Friday, from 7 a.m. to 9 p.m. Central time and Saturdays from 8 a.m. to 4:30 p.m. Central time.

Dates and times are subject to change. Please see your plan representative for more information.

What you need to know

TransitionYour account will automatically transfer to Empower effective September 19, 2018. No action is required for the transfer of your:

• Contribution elections

• Investment elections

• Self-directed brokerage account, if applicable*

• Loan or distribution arrangements, if applicable

• Beneficiary elections

* Through your continued use of the Self-directed Brokerage Account, you agree that you are a knowledgeable investor and understand the fees and risks associated with investments in the self-directed brokerage account. You are solely responsible for determining those investments which are suitable to you and for any losses to your plan account. You, on behalf of yourself, your heirs, successors and assigns, will not hold your employer, the Self-directed Brokerage provider or any of your Plan’s service providers liable for any negative consequences resulting from your use of the Self-directed Brokerage Account.

Blackout periodAs a result of this change, beginning September 14, 2018, you will temporarily be unable to check your account balance, transfer or change how your funds are invested, as well as obtain a loan or request a withdrawal or distribution. This period, during which you will be unable to exercise these rights otherwise available under the Plan, is called a blackout period.

This blackout period will allow for the transfer of the plan’s administrative records to Empower. During this period, your funds will remain invested and any earnings, if applicable, will accrue. Whether or not you are planning retirement in the near future, we encourage you to carefully consider how this blackout period may affect your retirement planning, as well as your overall financial plan. Please evaluate your financial circumstances and the appropriateness of your current investments in light of this temporary restriction. More information about the blackout date is included in the Important Notice section.

When the blackout period ends the week of September 30, 2018 (October 1 through 5, 2018), you will have full access to your plan account.

New fund offeringsAfter the transition, the Vulcan 401(k) Plan will offer new fund choices. More information about the investment options will be available on the website and mobile app.

Paying back loans in your accountIf you are retired or no longer employed by Vulcan Materials and are currently repaying a loan via bank drafts from a personal bank account, your banking information will NOT transfer to Empower. Please contact Empower after the move to set up automatic payments.

A special note to those not actively employed by Vulcan Materials Company

You are receiving this announcement because you have a balance in the Vulcan 401(k) Plan.

How your account will transfer As part of the move to Empower, your account will transfer as shown in the table below. If you prefer to have your assets invested in funds other than how they would be mapped below, simply change your current balance and future contribution elections (if you are an active employee) by contacting Alight Financial Solutions (“Alight”) no later than 4 p.m. Central time on September 14, 2018. You can also make changes after the conversion is complete.

This transfer may result in an increase or decrease of your investment risk exposure and may or may not be consistent with your target strategy or investment style. You are urged to review your account prior to and/or after the blackout period and make adjustments to your asset allocation if necessary.

BALANCES IN THESE FUNDS AUTOMATICALLY TRANSFER TO

Northern Trust Short Term Investment CIT MetLife GAC 12439

State Street Intermediate Gov/Credit Bond Index SL State Street U.S. Bond Index NL K

State Street S&P 500 Index SL State Street S&P 500 Index NL N

State Street Russell Large Cap Value Index SL State Street S&P 500 Index NL N

State Street Russell Small Cap Value Index NL A State Street Russell Small/Mid Cap Index NL K

State Street Russell Large Cap Growth Index SL State Street S&P 500 Index NL N

State Street Russell Small Cap Growth Index NL A State Street Russell Small/Mid Cap Index NL K

State Street International Index SL State Street Global All Cap Equity ex U.S. Index NL K

State Street Target Retirement Income SL Cl I State Street Target Retirement K

State Street Target Retirement 2020 SL Cl I State Street Target Retirement 2020 K

State Street Target Retirement 2025 SL Cl I State Street Target Retirement 2025 K

State Street Target Retirement 2030 SL Cl I State Street Target Retirement 2030 K

State Street Target Retirement 2035 SL Cl I State Street Target Retirement 2035 K

State Street Target Retirement 2040 SL Cl I State Street Target Retirement 2040 K

State Street Target Retirement 2045 SL Cl I State Street Target Retirement 2045 K

State Street Target Retirement 2050 SL Cl I State Street Target Retirement 2050 K

State Street Target Retirement 2055 SL Cl I State Street Target Retirement 2055 K

Patriot Transportation Holding Inc. Patriot Transportation Holding Inc.*

Vulcan Materials Company Vulcan Materials Company

*This investment is closed to new contributions and investments.

Plan investment optionsThe following is a complete list of investment options that will be offered in the Vulcan 401(k) Plan beginning the week September 30, 2018. More information about all of your investment options will be available after the move at vulcan401k.com.

Empower Retirement Advisory Services

Personalized advice, retirement evaluations and investment management are available with Online Advice or the Professional Management Program. Online Advice provides investment recommendations that you can implement yourself. The Professional Management Program manages your account for you. If you are enrolled in a managed account through Alight, and do not cancel your enrollment prior to the blackout period, you will be enrolled in the Professional Management Program following the transition to Empower. For information about these services, including applicable fees, please visit the website. There is no guarantee provided by any party that participating in any of the Advisory Services will result in a profit or that the related account will outperform a self-managed portfolio invested without assistance.

FUND NAME

MetLife GAC 12439

State Street U.S. Bond Index NL K

Baird Core Plus Bond Instl (BCOIX)

SSgA Treasury Inflation Protected Securities Index NL C

Wellington World Bond Series 2

Vanguard Equity Income Adm (VEIRX)

State Street S&P 500 Index NL N

T. Rowe Price Instl Large Cap Core Growth (TPLGX)

AllianceBernstein Discovery Value Z (ABSZX)

State Street Russell Small/Mid Cap Index NL K

Janus Henderson Triton N ( JGMNX)

State Street Global All Cap Equity ex U.S. Index NL K

American Funds EuroPacific Growth R6 (RERGX)

DFA Emerging Markets Core Equity I (DFCEX)

FUND NAME

State Street Target Retirement K (SSFOX)

State Street Target Retirement 2015 K (SSBHX)

State Street Target Retirement 2020 K (SSBOX)

State Street Target Retirement 2025 K (SSBSX)

State Street Target Retirement 2030 K (SSBYX)

State Street Target Retirement 2035 K (SSCKX)

State Street Target Retirement 2040 K (SSCQX)

State Street Target Retirement 2045 K (SSDEX)

State Street Target Retirement 2050 K (SSDLX)

State Street Target Retirement 2055 K (SSDQX)

State Street Target Retirement 2060 K (SSDYX)

Patriot Transportation Holding Inc. (PATI)*

Vulcan Materials Company (VMC)

*This investment is closed to new contributions and investments.

Get more information about the transition online at vulcan401k.com.

After the move to Empower, access your account in multiple ways:

• vulcan401k.com will be your new and robust website, offering 24/7-hour access to your account, retirement calculators and state-of-the-art planning tools once your plan goes live the week of September 30, 2018.

• 833-862-4015 (833-VMC-401K) is your new toll-free plan phone number that will give you access to service representatives ready to assist you.

• Retirement representatives are available Monday through Friday, from 7 a.m. to 9 p.m. Central time (excluding most financial market holidays) and Saturdays from 8 a.m. to 4:30 p.m. Central time.

• Empower Retirement mobile app can be downloaded from the Apple App Store. The release of the Empower Retirement app is expected in late 2018 for Android users.

Important notice concerning your rights in the Vulcan 401(k) Plan July 30, 2018

This notice is to inform you that your account in the Vulcan 401(k) Plan will transfer to Empower Retirement effective September 19, 2018.

As a result of this change, the plan will enter a blackout period which will temporarily restrict your ability to access your account.

The temporary blackout period will begin at 4 p.m. Central time on September 14, 2018. The blackout period will be lifted the week of September 30, 2018 (October 1 through 5, 2018). During this period, there will be restrictions on transactions, as well as a period of time in which you will have no access to your account. You will receive additional communication when the plan is live.

DEADLINES AT ALIGHT LAST DAY:

August 28, 2018to contact Alight to request paperwork for transactions including hardship withdrawals and rollovers into the plan.

September 6, 2018 Alight will accept paperwork for transaction requests.

September 14, 2018to request deferral changes, self-directed brokerage transactions, investment election changes, as well as the last day Alight will accept manual loan payments or rollover- in checks and paperwork for any other applicable transactions.

Transition to Empower RetirementYou will have complete access to your account at Empower the week of September 30, 2018 (October 1 through 5, 2018).

Before the blackout period begins, it is very important that you review and consider the appropriateness of your current investments because you will be unable to transfer or diversify those investments during the blackout period. For your long-term retirement security, you should give careful consideration to the importance of a well-balanced and diversified investment portfolio, taking into account all your assets, income and investments.

You should be aware that there is a risk to holding substantial portions of your assets in the securities of any one company. Individual securities tend to have wider price swings, both

up and down in short periods of time, than investments in diversified funds. Stocks that have wide price swings might have a large loss during the blackout period, and you would not be able to direct the sale of such stocks from your account during the blackout period.

To review your plan account and request any changes to the account’s investment allocation before the blackout period begins, contact Alight at 800-939-7526 or access your account online at yourbenefitsresources.com/vulcan.

You will be notified by Empower when the blackout period is lifted. To confirm the status of the blackout period, contact Empower at 833-862-4015 (833-VMC-401K) or access the website at vulcan401k.com.

Carefully consider the investment objectives, risks, fees and expenses of the annuity and/or the investment options. Contact us for a prospectus, a summary prospectus and disclosure document, as available, containing this information. Read them carefully before investing.

You could lose money by investing in a Money Market Fund. Although the fund seeks to preserve the value of your investment at $1 per share, it cannot guarantee it will do so. An investment in the fund is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. The fund’s sponsor has no legal obligation to provide financial support to the fund, and you should not expect that the sponsor will provide financial support to the fund at any time.

Securities offered or distributed through GWFS Equities, Inc., Member FINRA/SIPC and a subsidiary of Great-West Life & Annuity Insurance Company.

Great-West Financial®, Empower Retirement and Great-West InvestmentsTM are the marketing names of Great-West Life & Annuity Insurance Company, Corporate Headquarters: Greenwood Village, CO; Great-West Life & Annuity Insurance Company of New York, Home Office: New York, NY, and their subsidiaries and affiliates, including registered investment advisers Advised Assets Group, LLC and Great-West Capital Management, LLC.

GWFS Equities, Inc. registered representatives may also be investment adviser representatives of GWFS affiliate, Advised Assets Group, LLC. Representatives do not offer or provide investment, fiduciary, financial, legal or tax advice or act in a fiduciary capacity for any client unless explicitly described in writing.

GWFS Equities, Inc., or one or more of its affiliates, may receive a fee from the investment option provider for providing certain recordkeeping, distribution and administrative services.

Core investment options offered through a variable annuity, a group fixed and variable deferred annuity issued by GWL&A or, in New York, by GWL&A of NY, mutual funds, separately managed accounts, and/or collective trust funds.

Diversification does not ensure a profit and does not protect against loss in declining markets.

A collective trust fund is not a mutual fund and is exempt from SEC registration. Designed for and exclusively sold to qualified retirement plans and their participants, the funds are not available to individual retail investors.

Separately managed accounts are not registered investment products but separate accounts created specifically for the plan. Separately managed funds are not required to file a prospectus or registration statement with the SEC and, accordingly, neither is available.

IMPORTANT: The projections, or other information generated on the website by the investment analysis tool regarding the likelihood of various investment outcomes, are hypothetical in nature. They do not reflect actual investment results and are not guarantees of future results. The results may vary with each use and over time. Healthcare costs and projections, if applicable, are provided by HealthView Services. HealthView Services is not affiliated with GWFS Equities, Inc. Empower Retirement does not provide healthcare advice. A top peer is defined as an individual who is at the 90th percentile of the selected age band, salary range and gender.

App Store is a trademark of Apple Inc., registered in the U.S. and other countries.

Alight Financial Solutions is not affiliated with GWFS Equities, Inc. or its parent company or affiliates.

Not a Deposit | Not FDIC Insured | Not Bank Guaranteed | Funds May Lose Value | Not Insured by Any Federal Government Agency

Brokerage Products: NOT FDIC INSURED | NO BANK GUARANTEE | MAY LOSE VALUE

ERPC-SOX-17078-1807 AM544894-0718 ©2018 Great-West Life & Annuity Insurance Company. All rights reserved.

Get more information about the transition online at vulcan401k.com.