You’re important to pLeXuS, and we know making retirement planning

decisions can be daunting. that’s why we’ve been hard at work improving

our 401(k) plan. the plexus retirement Committee, along with the

professional expertise of its investment advisor, Francis investment

Counsel, re-evaluated the entire investment fund lineup in our 401(k) plan.

this in-depth portfolio analysis will provide you with new funds for greater

diversification opportunities, a streamlined menu and lower cost funds with

solid performance records.

With the goal of achieving a “best in class” investment menu the current

fund lineup will be improved by changing existing funds to lower cost share

classes, replacing or eliminating funds and adding new asset classes for

greater diversification opportunities. While maintaining a diversified

mix of investments doesn’t guarantee against loss, it does offer more

opportunities for growth along with a smoother ride. For that reason, the

five new asset categories, listed on the opposite page, will be added

to increase your diversification opportunities. this “best in class”

investment menu will be available beginning 02 maY 2013.

in addition, we’re offering expanded education and personal advisory

services from Francis investment Counsel, an independent investment

advisory firm, so you can get the help you need. For most, making wise

financial decisions is tougher than ever. they’ll provide workshops

and personalized advice to you and your family. You’ll benefit from their

experience and expertise when you meet to establish goals, explore

strategies, and make beneficial changes to your financial plan. it is

important to note that no part of Francis’ compensation is derived from

the investment decisions you make. tHeY HaVe one oBJeCtiVe in

minD: to HeLp You Better prepare For LiFe aFter WorK.

IntroducIng Plexus corP. 401(k) retIrement Plan enhancements

tIPs Bonds: tipS bonds are bonds with inflation protection. they are issued and guaranteed by the Federal Government.; every six months

the face value of the bond (called par value) is adjusted upward by the amount of inflation (Cpi) reported during that period. think of it like a cost-of-

living adjustment. in exchange for this inflation protection, tipS generally are offered with a lower current yield than bonds without this feature.

WHY a tipS BonD FunD noW? CaLL FranCiS or attenD a Group WorKSHop to FinD out.

emerging market Bonds: emerging market countries now comprise two-thirds of the world’s population and nearly

one-half of the world’s manufacturing. as a percent of GDp, economic growth in these regions is exceeding that of the united States. While the

plexus 401(k) plan already offers an emerging market stock fund, this new fund will invest in debt instruments issued by those same emerging

market countries and to a limited extent their corporations.

aren’t emerGinG marKet BonDS riSKY? CaLL FranCiS or attenD a Group WorKSHop to FinD out.

small-cap International: this fund will invest primarily in faster growing smaller companies located in the developed regions of the world,

primarily europe, Japan, and australia. While the plan offered international-Developed market funds with a focus on large-cap

companies, this new fund will give you exposure to the faster growing small companies within these regions.

WHat perCentaGe oF mY moneY SHouLD Be in internationaL SmaLL-Cap? CaLL FranCiS or attenD a Group WorKSHop to FinD out.

Frontier markets: this fund invests in equity securities within the “frontier markets” including africa, South america, and asia. think

of “frontier markets as even more “emerging” than the regions invested in by the existing emerging markets fund which focuses primarily on

Brazil, india, China. While these regions represent some of the strongest growth regions of the world, the “frontier markets” fund will narrow the

focus to the most underdeveloped and fastest growing regions.

aren’t Frontier marKetS too riSKY For mY 401(k)? Join uS For a Group meetinG to FinD out.

hard assets: this fund invests in commodity-based investments or “hard assets” such as oil, corn, gold, steel, and soybeans.

this fund is very volatile, however when mixed with a well-diversified portfolio, it can actually reduce the overall risk of your portfolio.

HoW DoeS tHiS FunD reDuCe VoLatiLitY? CaLL uS or attenD a Group WorKSHop to FinD out.

new target date FundsFor those investors wishing to keep it simple, the t. rowe price target retirement Date Funds will replace the mFS allocation Funds and

the target retirement Date Strategies. each t.rowe price fund is specifically designed for investors with a target retirement date in mind.

the fund managers select a mixture of stock, bond, and money market funds tailored specifically for your age group. as you near your target

retirement date, the fund managers gradually shift your investment allocation to a more conservative fund mix. the new funds will be available

in five-year increments to allow you to customize your fund selection to your desired retirement year.

For more inFormation on tHe neW inVeStment menu See tHe FunD map on tHe FLap.

What happens nextmake plans to attend one of the workshops listed on this page. then, sign up for your personal advisory

session as instructed by your Hr representative. if the available times do not work for you, please contact

Francis investment Counsel directly at 866-232-6457 or by email at info@francisinvco.com.

all balances in the previous funds will automatically be transferred into the most similar fund within the

new menu on the dates listed below, according to the mapping plan on the back page of this brochure.

there are no costs associated with these transfers.

Mon, 29 apR 2013Balances in the mFS risk tolerance funds will transfer into the appropriate t. rowe price target retirement Date Fund,

based on year of birth.

tues, 30 apR 2013Balances in the existing target retirement Date Strategies will transfer into the same year t. rowe price target

retirement Date Fund.

Wed, 01 MaY 2013the core fund lineup will transfer to new funds.

thurs, 02 MaY 2013all new funds will be available.

GRoup MeetinG schedule:tues, 26 mar 2013 Global Headquarters & neenah Design Center (raleigh Design Center & Boulder Design Center via webcast)

Wed, 03 apr 2013 Global Headquarters & neenah Design Center (raleigh Design Center & Boulder Design Center via webcast)

Wed, 10 apr 2013 neenah 1 & neenah 2

thurs, 11 apr 2013 appleton & appleton 2

Wed, 17 apr 2013 Chicago

Week of June 3rd Boise

week of may 20th San Jose

hoW Fees Will chanGeYou mean there is a fee to have a 401(k)? Yes, in fact all funds have fees. to learn more about what these

fees are and how they are changing in your 401(k) plan call us or attend a group workshop.

new Fund menu and mapping Plan core Investment menu

Fund type old Fund new Fund (existing balances and contribution elections

will transfer automatically to new fund)

Stable Value Wells Fargo Stable return m Fund Wells Fargo Stable return C Fund (lower cost fund)

Bond Vanguard total Bond market index Fund (VBtiX) Vanguard total Bond market index Fund (VBtiX) (no change)

tipS Bond none Vanguard inflation-protected Bond Fund (VaipX)

emerging market Debt none mFS emerging market Debt r5 Fund (meDHX)

Large-Cap Value t. rowe price equity income Fund (paFDX) t. rowe price equity income Fund (prFDX) (lower cost fund)

Large-Cap index Vanguard institutional index Fund (ViniX) Vanguard institutional index Fund (ViniX) (no change)

Large-Cap Growth t. rowe price Blue Chip Growth Fund (paBGX) t. rowe price Blue Chip Growth Fund (trBCX) (lower cost fund)

Small-Cap Value Columbia Small-Cap Value Fund (CSCZX) american Beacon Small-Cap Value Fund (aVFiX) (new fund)

Small-Cap Growth Columbia Small-Cap Growth ii Z Fund (pSCpX) inG Small-Cap opportunities Fund (nSpiX) (new fund)

international Value t. rowe price int’l Growth & income Fund (paiGX) t. rowe price int’l Growth & income Fund (triGX) (lower cost fund)

international Growth american Funds europacific Growth Fund (aepGX) american Funds europacific Growth Fund (rerGX) (lower cost fund)

Small-Cap international none Columbia acorn international Z Fund (aCinX)

emerging markets Lazard emerging markets instl. Fund (LZemX) Lazard emerging markets instl. Fund (LZemX) (no change)

Hard assets none pimCo CommoditiespLuS instl Fund (pCLiX)

Frontier markets none templeton Frontier markets Fund (FFrZX)

reit t. rowe price real estate adv Fund (trreX) none (balances will transfer into the Stable Value Fund)

Company Stock plexus Company Stock Fund (pLXS) plexus Company Stock Fund (pLXS) (no change)

new target date Fundstarget retirement Date none t. rowe price retirement income Fund (trriX)

target retirement Date target retirement Date Strategies 2010 t. rowe price retirement 2010 Fund (trraX)

target retirement Date none t. rowe price retirement 2015 Fund (trrGX)

target retirement Date target retirement Date Strategies 2020 t. rowe price retirement 2020 Fund (trrBX)

target retirement Date none t. rowe price retirement 2025 Fund (trrHX)

target retirement Date target retirement Date Strategies 2030 t. rowe price retirement 2030 Fund (trrCX)

target retirement Date none t. rowe price retirement 2035 Fund (trrJX)

target retirement Date target retirement Date Strategies 2040 t. rowe price retirement 2040 Fund (trrDX)

target retirement Date none t. rowe price retirement 2045 Fund (trrKX)

target retirement Date none t. rowe price retirement 2050 Fund (trrmX)

target retirement Date none t. rowe price retirement 2055 Fund (trrnX)

risk tolerance Funds mFS Conservative allocation Fund (maCFX)Balances will transfer into the t. rowe price target retirement Date Funds according to your birth year: Born in 1988 or later, to the t. rowe price 2055 FundBorn in 1983 through 1987, to the t. rowe price 2050 Fund Born in 1978 through 1982, to the t. rowe price 2045 FundBorn in 1973 through 1977, to the t. rowe price 2040 Fund Born in 1968 through 1972, to the t. rowe price 2035 Fund Born in 1963 through 1967, to the t. rowe price 2030 Fund Born in 1958 through 1962, to the t. rowe price 2025 Fund Born in 1953 through 1957, to the t. rowe price 2020 Fund Born in 1948 through 1952, to the t. rowe price 2015 Fund Born in 1947 or earlier, to the t. rowe price 2010 Fund

risk tolerance Funds mFS moderate allocation Fund (mamaX)

risk tolerance Funds mFS Growth allocation Fund (maGWX)

risk tolerance Funds mFS aggressive Growth allocation Fund (maaGX)

Conservative moderate moderately aggressive aggressive Very aggressive