Multi-Fineline

Electronix, Inc.

May 2013

Forward-Looking Language Statement

2

This includes forward-looking statements that involve risks and uncertainties. These forward-looking statements include, but are

not limited to, statements and predictions regarding revenues, sales, revenue growth, timing and ramping of new programs, labor

costs, new customer opportunities, demand for the company’s products, net income, operating expenses, capital expenditures,

profitability, gross margins, including, without limitation, the company’s targeted range of gross margins and the company’s

achievement of margins within or outside of such range, yields, absorption rates, the growth of, and trends in, the electronics

markets, the seasonality of our sales, statements regarding our competitors, our competitive strengths, emerging market

opportunities, our technology advancement and our next steps with respect thereto, the company’s diversification efforts, the

company’s relationship and opportunities with, and expected sales to, its customers, the company’s objectives, vision and strategies,

product trends, trends regarding the use of flex in smart phones, tablets and other consumer electronic devices, market

opportunities, the utilization of flex and flex assemblies, current and upcoming programs and product mix, efficiencies in the

company’s location and workforce strategies, the company’s manufacturing capabilities, capacity and utilization, inventory levels,

production build plans, growth and expansion thereof and equipment installation and the costs associated therewith. Additional

forward-looking statements include, but are not limited to, statements pertaining to other financial items, plans, strategies or

objectives of management for future operations, financial condition or prospects, and any other statement that is not historical fact,

including any statement which is preceded by the words “assume,” “schedule,” “should,” “can,” “will,” “plan,” “expect,” “estimate,”

“aim,” “intend,” “project,” “foresee,” “target,” “anticipate,” “may,” “believe,” “future,” “strategy,” or similar words. Actual events

or results may differ materially from the company’s expectations. Important factors that could cause actual results to differ

materially from those stated or implied by the company’s forward-looking statements include the impact of changes in demand for

the company’s products, the company’s success with customers, the success of the company’s customers and their products, labor

issues in the jurisdictions in which the company operates, the company’s ability to develop and deliver new technologies, the

company’s ability to diversify its customer base, the company’s effectiveness in managing manufacturing processes and costs and

expansion of its operations, trends in flex usage, the degree to which the company is able to utilize manufacturing capacity, enter

into new markets and execute its strategic plans, the company’s ability to manage quality issues, inventory levels and yields,

electricity and component shortages, the impact of competition, natural disasters, pricing pressures and of technological advances,

the outcome of tax audits, and other risks detailed from time to time in the company’s SEC reports, including its recent Quarterly

and Annual Reports on Forms 10-Q and 10-K. These forward-looking statements represent management’s judgment as of the date of

this presentation. The company disclaims any intent or obligation to update these forward-looking statements.

Investment Highlights

• Engineering expertise to support customers during the design process

• Integrated flexible circuit manufacturing and assembly solution enables quick

program ramps

• Willingness and ability to deploy capital to support customer needs

3

Key Differentiators Making MFLEX the Go-To Flex Supplier

Strong Long-Term Customer Relationships

Financial Profile

• History of supplying the leading mobile industry players

• Stellar reputation with customers due to ability to quickly adapt to market

changes and provide certainty of ramp

• Opportunities for growth with new customers and new program wins

• Strong cash flows, cash position and no debt provide significant financial flexibility

Large and Growing Addressable Market

• Well-positioned in smartphones and tablets

MFLEX Company Overview

4

NASDAQ: MFLX

Shares O/S: 23.8M*

52 Week High/Low: $29.70/13.89**

Avg. Volume: 78,000 shares**

Institutional Ownership: 35%

Market Cap: $342M**

Enterprise Value: $212M***

Share Repurchase Program: 1.1M shares authorized – 564,600 shares purchased; new 10b5-1 plan in effect for approximately 535,000 shares* Indicates fully diluted share count as of 3/31/13** As of 4/26/13*** As of 3/31/13 Balance Sheet

Headquarters: Irvine, CA

Founded: 1984

Public: 2004

Employees (3/31/13): ~12,000

Revenue FY12: $819M

Net Income FY12: $29M

Cash Balance (3/31/13): $130M

Debt Balance (3/31/13): none

MFLEX History and Size

5

1984

MFC1Flex & Assembly

1994

MFC2Flex & Assembly

Previously 300,000 sq. ft. in China

June 2004

October 2006

1995

MFICorporate headquarters and R&D facility

1984

MFIPreviously 19,000 sq. ft. in Anaheim

MFC2Flex & Assembly

Approx. 700,000 sq. ft.*

$33 million capital expenditure complete for additional

equipment at MFC2

Anticipate and secure capacity and technology just-in-time

$35 mil $102 mil $129 mil$24 mil $791 mil

MFC3Flex & AssemblyApprox. 600,000

sq. ft. facility*

* As of 9/30/12

$504mil

1994

1995

1997

2000

2003

2004

2005

2006

2007

2010

2011

Chengdu Assembly

Approx. 325,000 sq. ft. facility*

$832 mil

MFC1 operations transferred

to other facilities

2012

$50 million capital

expenditure for MFC3 and

Chengdu Assembly expansion

$819 mil

MFLEX Mission

6

• Be a leading global provider of:

– high-quality, technologically advanced flexible printed circuits

– added-value of turnkey component assembly

• Focus on applications and products:

– where flexible printed circuits facilitate human interaction with

electronic devices

– where size, shape or weight is paramount

• Be the quickest and most responsive supplier to the

OEMs that market portable electronics

• Be a global leader of electronics packaging technology

Much more than a flex manufacturer . . . MFLEX provides OEMs with

unique packaging solutions required by the complex designs of today’s

portable consumer electronic devices.

Key Functions of Flex within a Typical Smartphone

• Flex makes connections to:– Audio/Speakers

– Keypad

– Side keys

– Headset jack

– Volume controls

– Motherboard

– Wi-Fi module

– Vibration controls

– Piezo tactile display

• Reduces packaging size—Allows

components to be put on the flex,

thereby shrinking the size of the

motherboard

7

Evolution of Typical Program Win

8

OEM begins

design of new

model

MFLEX provides

application

engineering

expertise to

incorporate flex

into design (at no

cost to OEM)

OEM goes out to

bid for flex

requirements

MFLEX uses

insight gained in

design phase to

begin

preparations for

initial production

of flex assemblies

OEM receives

bids from flex

manufacturers

MFLEX has a

strong track

record among its

OEM customers in

ability to quickly

ramp production

volumes to meet

difficult

requirements

OEM awards

program to

MFLEX

MFLEX wins

program due to

superior quality,

competitive

pricing, and speed

of delivery

Competitive Landscape

• Market trend is toward flex with

components vs. bare flex

• Large EMS companies have been

unsuccessful in replicating MFLEX’s

recipe

• MFLEX’s recipe for success-integrated

flex and assembly capabilities “under

one roof” results in:

– Cost and quality efficiencies

– Ability to produce higher complexity flex

assemblies

– Improved ‘speed to market’

9

The MFLEX Advantage

Competitors

Sumitomo ElectricSumitomo Electric

FujikuraFujikura

MektecMektec

Zhen Ding Technology

(ZDT)

Zhen Ding Technology

(ZDT)

MultekMultek

InterflexInterflex

Career TechnologiesCareer Technologies

FLEX ASSEMBLIES

Integration of Flex, Component and High Level Assembly

MODULES

Provide Electronic Packaging Solutions

MFLEX’s Vision: Moving Up the Value Chain with

Technology Advancements

10

BARE FLEX

Early Design Involvement Through

Global Application and Design Engineering

Flex Circuit Assembly Business *

11

2011 = $40.3B 2016 = $62.3B

Source: Prismark Partners LLC, January 2013 Estimates

Computing & Business

Communications

Consumer

Industrial & Medical

Defense Electronics

IC Packaging

Automotive

Displays

* Value includes FPC, components, assembly and test

0

200

400

600

800

1000

1200

2011 2012(E) 2013(E) 2014(E) 2015(E)

Thriving Smartphone Market

12

Projected Worldwide Addressable

Smartphone Market

Source: Oppenheimer Equity Research

January 2013 Estimates

Un

its

in M

illio

ns 19% CAGR

• Lower priced smartphones

• Improved user interface and

functionality

• Attractive carrier data plans

• Replacement / upgrade activity

• Device subsidization and device

promotions

Catalysts Driving Demand

-20

30

80

130

180

2011 2012(E) 2013(E) 2014(E) 2015(E)

Tablet Devices Offer Significant Growth

Opportunity

13

Projected Worldwide Addressable

Tablet Market

Source: Oppenheimer Equity Research

January 2013 Estimates

Un

its

in M

illio

ns 33% CAGR

• Market currently dominated by an

existing MFLEX OEM customer

• Tablet unit growth continuing to

accelerate

• MFLEX has experienced higher flex

content on successive generations of

tablet programs

• Increasing device functionality

expected to drive higher flex content

in future programs

Key Considerations

Favorably Positioned in the Smartphone and

Tablet Markets

• Complex designs and features require flexible printed circuits

in today’s smartphones and tablets

• Flexible printed circuits are essential in helping OEMs achieve

desired form factors and functionality for smartphones and

tablets

• Tablet market currently dominated by an existing customer

• Currently producing flex assemblies for several Android-

based smartphones, which is a growing market segment

14

Revenue Mix

15

Approximate Range of MFLEX Dollar Content in

Typical Program

16

Less than $5

Feature Phone & Low-End Smartphone Mid/High-End Smartphone & Tablet

Typical Dollar Content to MFLEX Per Device

$5 to $15

Key Near-Term Growth Strategies

• Participate in growth of existing OEM customers’ mobile

handset and tablet businesses

• Expand into existing OEM customers’ other portable consumer

electronic device programs

– Tablets, music players, laptops, ultrabooks, eBook readers, mobile

internet devices, portable game consoles, ultra mobile PCs, etc.

• Develop new relationships with additional mobile handset and

consumer electronic OEMs

• Expand into other consumer electronics markets

– Universal remote controls, displays, digital cameras & camcorders,

digital picture frames, etc.

17

Capacity Expansion Initiatives

• New manufacturing facility (MFC3) – located with existing facility

(MFC2) in Suzhou, China

– Adds state-of-the-art technology and approximately 600K sq. ft. of capacity

– Construction completed; on-line as of September 2010

– Additional expansion commenced April 2012; on-line as of September 2012

• New manufacturing facility in Chengdu, China

– Broke ground April 2010; on-line as of June 2011

– Additional expansion commenced April 2012; on-line as of September 2012

18

Annual revenue capacity of $1.3 - $1.4 billion

based on expected product mix.

Long-Term Growth Strategy: Apply MFLEX

Technology in New Market Segments

• Currently MFLEX delivers high-end solutions to the mobility

market which push the edge of technology

• MFLEX’s market leading technology with state of the art

equipment, tooling and process capabilities is applicable and

transferrable to new market segments including:

– Automotive

– Industrial

– Medical

19

MFLEX has the technology and know-how to be the enabler of

increased functionality in reduced packaging size for these new

market segments

MFLEX Balance Sheet Summary

20

Actual as of

March 31, 2013

Cash, Cash Equivalents & Short Term Investments

Working Capital

Total Assets

Total Debt

Stockholders’ Equity

(US$ in millions)

(unaudited)

$129.8

$163.8

$589.2

n/a

$430.3

Q2 FY2013 Results

21

$173.7M

(2.7)%

21

Net Sales

Non-GAAP Gross Margin*

Results

Q2 FY2013

Customer C

Customer D

Other

Q2 FY2013

Revenue Contribution

77%

13%

10%

Note: Gross margin excludes impact of inventory write-down. A reconciliation of GAAP to non-GAAP gross margin is provided in a table at the end of this presentation.

Initiatives Expected to Drive Margin Improvement

22

Near/Medium

Term

• Increase automation in manufacturing facilities

• Diversify product mix toward higher margin

opportunities

Long Term• Expand end markets to offset seasonal nature

of current business

Investment Highlights

• Engineering expertise to support customers during the design process

• Integrated flexible circuit manufacturing and assembly solution enables quick

program ramps

• Willingness and ability to deploy capital to support customer needs

23

Key Differentiators Making MFLEX the Go-To Flex Supplier

Strong Long-Term Customer Relationships

Financial Profile

• History of supplying the leading mobile industry players

• Stellar reputation with customers due to ability to quickly adapt to market

changes and provide certainty of ramp

• Opportunities for growth with new customers and new program wins

• Strong cash flows, cash position and no debt provide significant financial flexibility

Large and Growing Addressable Market

• Well-positioned in smartphones and tablets

8659 Research Drive

Irvine, California 92618

Phone: 949.453.6830

Email: investor_relations@mflex.com

Web: http://www.mflex.com

NASDAQ: MFLXNASDAQ: MFLX

Multi-Fineline

Electronix, Inc.

Supplemental Financial Data

Q1 Q3 Q1 Q3 Q1 Q3 Q1 Q3 Q1 Q3 Q1 Q3 Q1 Q3 Q1 Q3 Q1 Q3 Q1

$54 $57

$72 $72$84

$77$84

$111

$140

$124$130

$110$124

$113$104

$167

$184

$164$168

$213$217

$174$175

$199

$230

$154

$181

$227

$241

$207

$192$192

$239

$208

$170

$202

$290

$174

MFLEX Quarterly Sales Trend

26

(unaudited)

FY05FY04 FY06 FY07 FY08

(US$ in millions)

FY09 FY10 FY11 FY12 FY13

2010 2011 2012 - - - - - 2012 2013

$791.3 $831.6 $818.9

$208.0 $173.7

MFLEX Net Sales

27

Fiscal Years Ended Sept. 30 Fiscal Q2 Ended March 31

(US$ in millions)

(unaudited)

MFLEX Net Income

28

Fiscal Years Ended Sept. 30

$29.8

$37.9

$29.5

$12.1

($23.9)

2010 2011 2012 - - - - - 2012 2013

(US$ in millions)

(unaudited)

Note: FY 2010 and FY 2011 net income results include $9.9 million and $2.6 million respectively, in after-tax impairment and restructuring costs. FY 2012 net income results include $1.5 million in after-tax restructuring asset recoveries. Q2 FY 2012 net income results include $0.7 million in after-tax impairment and restructuring gains.

Fiscal Q2 Ended March 31

MFLEX Earnings per Share (Diluted)

29

$1.16

$1.56

$1.22

$0.50

($1.00)

2010 2011 2012 - - - - - 2012 2013

(unaudited)

Fiscal Years Ended Sept. 30

Note: FY 2010 and FY 2011 earnings per share results include $0.39 per diluted share and $0.10 per diluted share, respectively, in after-tax impairment and restructuring costs. FY 2012 earnings per share results include $0.06 per diluted share in after-tax restructuring asset recoveries. Q2 FY 2012 earnings per share results include $0.03 per diluted share in after-tax impairment and restructuring gains.

Fiscal Q2 Ended March 31

MFLEX Non-GAAP Net Income

30

Fiscal Years Ended Sept. 30

$43.2 $43.4

$31.3

$12.4

($23.0)

2010 2011 2012 - - - - - 2012 2013

(US$ in millions)

(unaudited)

Note: The items excluded from GAAP net income are as follows: (a) stock-based compensation expense; and (b) impairment and restructuring activities, including asset impairments, one-time termination benefits, gains on sale of previously impaired assets and other restructuring-related costs. A reconciliation of GAAP to non-GAAP net income is provided in a table at the end of this presentation.

Fiscal Q2 Ended March 31

MFLEX Non-GAAP Earnings per Share (Diluted)

31

$1.69 $1.78

$1.30

$0.51

($0.97)

2010 2011 2012 - - - - - 2012 2013

(unaudited)

Fiscal Years Ended Sept. 30

Note: The items excluded from GAAP earnings per share are as follows: (a) stock-based compensation expense; and (b) impairment and restructuring activities, including asset impairments, one-time termination benefits, gains on sale of previously impaired assets and other restructuring-related costs. A reconciliation of GAAP to non-GAAP EPS (diluted) is provided in a table at the end of this presentation.

Fiscal Q2 Ended March 31

Reconciliation of Non-GAAP Financial Measures

32

Multi-Fineline Electronix, Inc.

Selected Non-GAAP Financial Measures and Schedule Reconciling Selected Non-GAAP Financial Measures to Comparable GAAP Financial Measures

(in thousands, except per share amounts)

(unaudited)

(in thousands, except per share amounts)2013 2012 2013 2012

GAAP net (loss) income (23,879)$ 12,104$ (15,531)$ 25,648$ Stock-based compensation 1,241 1,503 2,548 2,888 Impairment and restructuring - (1,171) - (1,736) Income tax effect of non-GAAP adjustments (406) (30) (826) (249) Non-GAAP net (loss) income (23,044)$ 12,406$ (13,809)$ 26,551$

- - - - GAAP diluted earnings per share (1.00)$ 0.50$ (0.65)$ 1.06$ Effect of stock-based compensation, net of tax on diluted earnings per share 0.03 0.04 0.07 0.08 Effect of impairment and restructuring, net of tax on diluted earnings per share - (0.03) - (0.04) Non-GAAP diluted earnings per share (0.97)$ 0.51$ (0.58)$ 1.10$

Weighted-average diluted shares used in calculating non-GAAP diluted earnings per share 23,799 24,104 23,797 24,113

March 31, March 31,

March 31, 2013GAAP gross margin percentage (8.9)%Effect of inventory write-down 6.2%Non-GAAP gross margin percentage (2.7)%

Three Months Ended