Investor Relations Presentation March 2015

Forward-Looking Information Advisory Regarding Forward-Looking Statements •

This document contains forward-looking statements concerning future events or the Company’s future performance, including the Company’s objectives or expectations for revenue and earnings growth, business opportunities in the Petroleum Products, Water Products, Corrosion Products and other markets, efforts to reduce administrative and production costs, manage production levels, anticipated capital expenditure trends, activity in the petroleum and other industries and markets served by the Company and the sufficiency of cash flows and credit facilities available to cover normal operating and capital expenditures. Forward-looking statements are often, but not always, identified by the use of words such as “seek,” “anticipate,” “plan,” “continue,” “estimate,” “expect,” “may,” “will,” “project,” “predict,” “potential,” “targeting,” “intend,” “could,” “might,” “should,” “believe” and similar expressions. Actual events or results may differ materially from those reflected in the Company’s forward-looking statements due to a number of known and unknown risks, uncertainties and other factors affecting the Company’s business and the industries the Company serves generally.

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These factors include, but are not limited to, fluctuations in the level of capital expenditures in the Petroleum Products, Water Products, and Corrosion Products markets, drilling activity and oil and natural gas prices, and other factors that affect demand for the Company’s products and services, industry competition, the need to effectively integrate acquired businesses, uncertainties as to the Company’s ability to implement its business strategy effectively, political and economic conditions, the Company’s ability to attract and retain key personnel, raw material and labour costs, fluctuations in the US dollar, euro and Canadian dollar exchange rates, and other risks and uncertainties described under the heading “Risk Factors” in the Company’s most recent Annual Information Form, and elsewhere in this document and other documents filed with Canadian provincial securities authorities. These documents are available to the public at www.SEDAR.com.

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In addition to the factors noted above, management cautions readers that the current economic instability in the world today could have a negative impact on the markets in which the Company operates and on the Company’s ability to achieve its financial targets. Factors such as continuing global economic uncertainty, tighter lending standards, volatile capital markets, fluctuating commodity prices, and other factors could negatively impact the demand for the Company’s products and the Company’s ability to grow or sustain revenues and earnings. Fluctuations in conversion rates of the US dollar to Canadian dollar and euro to Canadian dollar have the potential to impact the Company’s revenues and earnings.

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The Company believes that the expectations reflected in the forward-looking statements are reasonable, but no assurance can be given that these expectations will prove to be correct and such forward-looking statements included in this report should not be unduly relied upon.

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The forward-looking statements in this report speak only as of the date of this presentation. The Company does not undertake to update any forward-looking statement, whether written or oral, that may be made from time to time by the Company or on the Company’s behalf, whether as a result of new information, future events, or otherwise, except as may be required under applicable securities laws. The forward-looking statements contained in this document are expressly qualified by this cautionary statement.

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Mission Statement Our Vision Is “To be the leading global provider of environmentally-friendly liquid storage, fluid handling and corrosion resistant industrial products.”

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Market Summary • TSX symbol

ZCL

• Basic common shares o/s

30.2 MM

• Shares held by mgmt & directors

2.8 MM

• Equity market capitalization

$180 MM

• Net cash (December 31, 2014)

$25.8 MM

• Dividend per share (quarterly/annual)

$.045/$0.18

• Yield

3%

• Dividend Payout Ratio

25 - 30%

• NCIB implemented March 2015

up to 750,000 shares 4

Management Team & Board of Directors Management Team • President & CEO • Chief Operating Officer • Chief Financial Officer • VP Sales & Marketing, Canadian Petroleum • VP Sales & Marketing, US Petroleum & Water • VP Sales & Marketing, Corrosion • VP Business Development • VP of Human Resources • Director of Health & Safety

Ron Bachmeier Kapul Gill Kathy Demuth Kent Halliday Tom Tietjen Andy Mikalauskas Mike Stark Joe Santoro Patrick Williams

Board of Directors • Tony Franceschini, Chair • Ron Bachmeier (not independent) • Bruce Bentley • Leonard Cornez • Allan Olson • Harold Roozen • Ralph Young 5

North American Coverage Legend: Underground (Petroleum & Water) Aboveground (Corrosion) Head Office/Regional Office

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ZCL Core Product Markets

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One Company – Many Strong Brands

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Petroleum Products • • • •

Downstream Petroleum Midstream Petroleum Upstream Petroleum International (licensee’s)

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Petroleum Market Downstream Market Size •

$25 MM to $35 MM in Canada (market share > 85%)

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$125 MM - $150 MM in United States (market share > 40%)

Competitors •

Fiberglass – CSI Denali

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Steel – Modern Welding, Highland, Northern Steel, and many regional manufacturers

Market Growth Focus – gain market share against steel •

Mature market – demographic shift/new replacements

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1980’s tanks reaching end of original 30 year warranty (both steel and FRP)

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Future fuels (E15, E85, biofuels) – replacement and upgrades

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Diesel Exhaust Fluid (DEF) – highway, off-road construction, marine

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Retail marketers margins at historical highs due to lower fuel prices – should benefit from currently lower oil and gas prices

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Petroleum Market Midstream Petroleum •

Pipeline expansion will drive sales growth (pump station sump tanks)

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2015 expansion projects funded and underway – no negative impact expected due to lower oil and gas prices

Upstream Petroleum •

Future growth will be driven by increased natural gas drilling activity due to potential LNG export expansion

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Lower oil and gas prices will have a negative impact on this market until energy prices recover

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Water Market • • • • • • •

Potable Onsite Decentralized Wastewater Fire Protection Water Collection/Conservation (Green Building/LEED) Wet Wells and Lift Stations for Municipal/Industrial Applications Grease Interceptors Specialty Markets—Washdown tanks, Food Processing Drain tanks

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Water Market Market Size •

Total market size of $400 - $500 MM in North America

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Market niches vary from $20 MM to $100 MM

Competitors •

Concrete is dominant (>90%) with hundreds of regional suppliers

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FRP – CSI Denali, LF and numerous regional tank manufacturers

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Poly – Norwesco, Darco and many national and regional manufacturers

Market Growth Focus – gain market share against concrete •

Tied to construction cycle – recovering, but still weak compared to 2008 peak

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Broad water market should benefit from increased construction activity and economic growth due to low oil and gas prices

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Environmental awareness: ”scarce commodity with value” is a key opportunity

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Evolving government regulations for wastewater, storm water, and fire submarkets will support growth

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Reuse/recycle movement is macro driver

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Emphasize specifications, life cycle cost and sustainability advantages over concrete 13

Corrosion Products • Oil Sands • Industrial Corrosion – Chemical, Chloralkali and Industrial Tanks – Power Generation – Metals, Mining and Energy – Industrial Pollution Control – Pulp and Paper

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Oil Sands Market Market Size •

Oil Sands spending estimated at $15 B to $20 B annually through 2020

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$150 B in capital spent to date affords opportunity for expansion into annual op-ex spend and shut-down work

Competitors •

Large diameter field erected, steel tanks

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Regional FRP competitors for smaller diameter FRP tanks

Market Growth Focus – broaden applications •

Long term committed spend is well documented, near term activity will be negatively impacted by lower oil and gas prices

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Leverage “design one, build many” strategy with EPC firms

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Expand op-ex and maintenance services

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Leverage the interface between Oil Sands, water, and chemicals

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Industrial Corrosion Market Market Size •

Industrial Corrosion is a $1 B market for composite and dual laminate products

Competitors •

Denali (Ershigs, Fabco, Belco)

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RPS (NMR, Sealtech), Augusta, Plasticon /AC Plastiques, DKG (An-Cor), RL Industries

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Many small regional competitors

Market Growth Focus – broaden customer base •

Expansion up-cycle on Chemical Industry due to cheap and abundant natural gas – Projected growth through 2020

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Emerging LNG export terminal expansion should drive demand for both dual-laminate and FRP products

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Expand op-ex and maintenance service offerings

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Leverage expanding sales team and broader sales channels

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Economic growth due to lower energy prices should be beneficial for this market

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Product Revenue by Year

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Gross Profit & Gross Margin by Year

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EBITDA by Year

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Earnings Per Share

*the 2010 Loss per Share displayed has been adjusted to remove the write-down of goodwill and intangible assets of $0.36 per share

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Return on Capital Employed (ROCE)

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Debt to EBITDA

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Operational Cash Flow vs. Capital Spend

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Quarterly Dividend History

*the ZCL corporate dividend was suspended in 2010

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Backlog

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TSX: ZCL www.ZCL.com