Form S-1 · IREN Ltd

IREN

Priced November 18, 2021 · $28.00 a share · Original on SEC EDGAR · PDF

Prospectus Summary

PROSPECTUS SUMMARY

This summary highlights information contained elsewhere in this prospectus. Because this is only a summary, it does not contain all the information that may be important to you. You should read this entire prospectus and should consider, among other things, the matters set forth under “Risk Factors,” “Summary Historical Financial Information and Non-IFRS Measures,” “Management’s Discussion and Analysis of Financial Condition and Results of Operations,” and our historical financial statements and related notes thereto appearing elsewhere in this prospectus before making your investment decision. Unless otherwise indicated or the context otherwise requires, all references in this prospectus to “Iris Energy,” “we,” “us,” “our,” “its,” and the “Company” refer to the registrant and its consolidated subsidiaries.

Our Company

We are a Bitcoin mining company. We build, own and operate data center and electrical infrastructure for the mining of Bitcoin primarily powered by renewable energy.

We target entry into regions where there are low-cost, abundant and attractive renewable energy sources. In January 2020, we acquired our first site in British Columbia, Canada (“BC”), from PodTech Innovation Inc. and certain of its related parties. This site is connected to the British Columbia Hydro and Power Authority (“BC Hydro”) electricity transmission network (69 kV grid-connection) on which the electricity, as of 2021, was 98% sourced from clean or renewable sources. The data center site, which has been operating since 2019, has approximately 30 MW of capacity and operating hashrate capacity of approximately 0.7 EH/s, as of October 1, 2021.

In addition to our first site in BC, as of September 30, 2021, we have conditional and unconditional rights to a number of sites across BC, Texas (USA) and Asia-Pacific, over which we are currently pursuing development activities. These sites are anticipated to support our operating and contracted nameplate hashrate capacity of 15.2 EH/s, equating to approximately 530 MW of data center capacity when online and fully operational.

Our mining operations generate revenue by earning Bitcoin through a combination of block rewards and transaction fees from the operation of our specialized computers called Application-specific Integrated Circuits (“ASICs”) and exchanging these Bitcoin for currencies such as USD or CAD on a daily basis.

As of September 30, 2021, we have entered into binding hardware purchase contracts with Bitmain Technologies Limited, a leading producer of Bitcoin mining hardware, to acquire the latest-generation miners, Antminer S19j and Antminer S19j Pro, with an aggregate nameplate hashrate capacity of 14.5 EH/s and deliveries commencing in October 2021 and ending in September 2023, which is expected to increase our operating and contracted nameplate hashrate capacity to 15.2 EH/s and result in an average nameplate hardware efficiency of approximately 30 W/TH.

We have been mining Bitcoin since 2019. We liquidate all the Bitcoin we have mined and therefore do not have any Bitcoin held on our balance sheet as of September 30, 2021. Our cash and cash equivalents were US$85.7 million (A$118.6 million) as of September 30, 2021. Our total revenue was US$10.4 million (A$14.3 million) for the three months ended September 30, 2021, representing growth of approximately 1,177% over US$0.8 million (A$1.1 million) for the three months ended September 30, 2020. We generated a loss after income tax expense of US$490.6 million (A$678.7 million) and US$0.4 million (A$0.5 million) for the three months ended September 30, 2021 and 2020, respectively. We generated EBITDA of US$6.0 million (A$8.3 million) for the three months ended September 30, 2021. We generated an EBITDA loss of US$0.02 million (A$0.03 million) for the three months ended September 30, 2020. EBITDA is a financial measure not defined by IFRS. For a definition of EBITDA, an explanation of our management’s use of this measure and a reconciliation of EBITDA to loss after income tax expense, see “Summary of Historical Consolidated Financial and Non-IFRS Measures.”

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Bitcoin Mining

Bitcoin is a scarce digital asset that is created and transmitted through the operation of a peer-to-peer network of computers running the Bitcoin software. The Bitcoin network allows people to exchange digital tokens, called Bitcoin, which are recorded on a publicly distributed digital transaction ledger forming the Bitcoin blockchain, which contains the record of every Bitcoin transaction since the inception of Bitcoin. The Bitcoin network is decentralized, meaning no central authority, bank or financial intermediary is required to create, transmit or determine the value of Bitcoin.

Miners earn Bitcoin by validating and verifying Bitcoin transactions, securing transaction blocks and adding those transaction blocks to the Bitcoin blockchain by using ASICs to solve a complex cryptographic algorithm known as Secure Hash Algorithm 256 (“SHA-256”). Each unique block can be mined and added to the Bitcoin blockchain by only one miner. Once the miner mines the block, the rest of the network can verify and confirm the block to the blockchain. The successful miner is remunerated with newly minted Bitcoins (known as the “block reward”) and transaction fees. Bitcoin miners will be able to continue earning block rewards through this process until 21 million Bitcoins have been mined, which reflects the total fixed supply limit of Bitcoin. The Bitcoin network’s design regulates supply by only allowing a fixed number of Bitcoin to be mined each year and halving the number of block rewards paid to miners after approximately every four years. As a result of the Bitcoin network’s limitations on mining, it is estimated that the final Bitcoin block reward will occur in 2140, at which time miners will be incentivized to maintain the network solely based on transaction fees. It is currently estimated that approximately 20.5 million Bitcoin will have been mined by the year 2030.

Performance Metrics — Hashrate and Difficulty In Bitcoin mining, the processing power of a miner is measured by its “hashrate” or “hashes per second.” “Hashrate” is the speed at which a miner can produce computations (“hashes”) using the Bitcoin network’s algorithm, expressed in hashes per second. Blockchain.com estimates that the 7-day average of the aggregate hashrate of the entire Bitcoin network is approximately 140 EH/s, as of September 30, 2021, or 140 x 1018 hashes per second.

An individual miner, such as our Company, has a hashrate measured across the total number of ASICs it deploys in its Bitcoin mining operations. Generally, a miner’s expected success rate in solving blocks and earning Bitcoin over time is correlated with its total hashrate as a proportion of the total network hashrate over the same period.

“Difficulty” is a measure of the relative complexity of the algorithmic solution required for a miner to mine a block and receive Bitcoins from the block reward and transaction fees. An increase in network hashrate will temporarily result in shorter block times as the mining algorithm is solved faster–and vice versa if the network hashrate decreases. The Bitcoin network protocol adjusts the network difficulty every 2,016 blocks (approximately every two weeks) to maintain a target block time of 10 minutes.

Mining Pools

As noted above, while an individual miner’s expected success rate in solving blocks and earning Bitcoin over time is correlated with its total hashrate as a proportion of the total network hashrate over the same period, in the short-term, there can be variability in a miner’s actual success rate (and therefore revenue) as the process is probabilistic. As such, miners like us typically aggregate their computing power with others by joining a global “mining pool.” Mining pools generally pay out Bitcoin to participants daily based on a miner’s computing power contribution to the mining pool in return for a fee. This arrangement can reduce revenue variance and certain pools may even reward miners regardless of the number of blocks the pool solves each day (i.e. the pool operator absorbs daily variances).

Bitcoin Mining Economics As of September 30, 2021, a successful Bitcoin miner earns a block reward of 6.25 Bitcoins plus transaction fees for each block added to the blockchain, which occurs approximately every 10 minutes and equates to 52,560 blocks or 328,500 Bitcoins per year, excluding transaction fees. The block reward is programmed to halve to 3.125 Bitcoins in approximately mid-2024. The key economic drivers for Bitcoin mining are illustrated below.

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The economics of Bitcoin mining are predominantly driven by:

As noted above, the amount of block rewards paid to miners is on a fixed distribution schedule, resulting in the last block reward payout to occur in approximately 120 years, at which time miners will be incentivized to maintain the network solely based on transaction fees.

We estimate that the market for Bitcoin mining is approximately $16 billion in 2021. This is calculated based on annualizing the Bitcoin mining revenues for the nine months ended September 30, 2021 of approximately $12 billion, according to Blockchain.com.

Limitations of Other Miners

While the market for Bitcoin mining is large and growing, we believe some other miners may have a combination of the below limitations:

Iris Energy Competitive Features

Contracted mining hardware supply We have entered into binding hardware purchase contracts with Bitmain Technologies Limited with deliveries commencing in October 2021 and ending in September 2023, which is expected to increase our operating and contracted nameplate hashrate capacity to 15.2 EH/s and result in an average nameplate hardware efficiency of approximately 30 W/TH.

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We understand certain miners disclose budgeted or expected future hashrate capacities, some of which may not be supported by hardware purchase contracts. We believe that the current global semiconductor shortage and mining hardware manufacturer constraints may potentially result in certain miners not being able to procure mining hardware and meet their hashrate capacity targets. We have not stated any such forecasts and only state our contracted position.

Established energy and community strategy

We believe it is increasingly important that Bitcoin is, and can be, mined and utilized in an environmentally and socially responsible manner.

We are focused on locating our operations in areas with low-cost and excess renewable energy. For example, our current operations in BC are connected to the BC Hydro network, whose electricity was 98% sourced from clean or renewable sources as of 2021.

We believe that this reduces the risk profile of our business through both limiting our exposure to commodity inputs such as gas and coal, as well as carbon pricing policies or other similar mechanisms that may significantly impact the ongoing cost of thermal generation.

In addition, by targeting regions with existing and excess renewable energy supply, we also hope to help reduce social and public policy risks. We believe it is important to support the local communities in which we operate. Our strategy is based upon entering markets that have a high penetration of renewables and where our operations can help provide benefits to the local energy markets and communities and establish a social license in the regions in which we operate. Please refer to the sections titled “—Energy market strategy” and “—Regional and Community strategy” for more details.

Seasoned management team with experience in data center development and Bitcoin mining

We believe we are well-positioned to execute our strategy. Our board and management team have an extensive and established track record in financing, developing, building, operating, maintaining and managing large-scale greenfield renewable energy projects, data center development and associated grid connections across North America, Western Europe and Asia-Pacific.

We are building proprietary data centers that continue to be refined through years of research and development to further optimize the operational environment and efficiencies, including stable uptime performance during high and low temperature periods. Additionally, we have been mining Bitcoin since 2019 and have formed strong relationships with leading Bitcoin mining hardware suppliers, including Bitmain Technologies Limited, as well as utility companies such as BC Hydro.

We believe our purpose-built proprietary data centers may provide operational advantages compared to less efficient airflow, cooling and re-heating designs that may be limited in certain modified shipping container or retrofitted warehouses designs.

30 MW Canal Flats site

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Long-term security over infrastructure, land and power supply

We have ownership of our electrical infrastructure and data centers, including freehold and long-term leasehold land. This provides us with security and operational control over our assets.

Long-term asset ownership also allows our business to benefit from more sustainable cash flows in comparison with miners that rely upon third-party hosting services or short-term land leases which may be subject to termination rights, profit sharing arrangements and/or potential changes to contractual terms such as pricing.

We also focus on grid-connected power access which again helps to ensure we are able to utilize a reliable, long-term supply of power.

Operations and maintenance

We believe it is important to retain control and operational oversight of our infrastructure, rather than outsourcing to a third-party provider who may not be aligned to our objectives.

As both the owner and operator of our hardware and infrastructure, we are directly incentivized to optimize each component of our value chain. Learnings and efficiency gains can then be applied across our entire portfolio.

In addition, we believe that we are able to identify and respond to operational issues in a more efficient and timely manner than would be the case under an outsourced hosted model. We believe this allows us to maximize operating performance as well as hardware life.

While outsourcing infrastructure and operations and maintenance to third-parties may result in near-term returns and scale, short-term contractual arrangements may result in increased counterparty risk (e.g. potential non-performance, delays and disputes) and renewal risk.

Geographical diversification

We believe that it is prudent to own and operate facilities across several jurisdictions to help mitigate against risks such as regulatory risks, political risks, market risks, counterparty risks, climate change and weather-related events. Accordingly, our current operations and pipeline span across Canada, the U.S. and Asia-Pacific.

We believe that a portfolio of global projects reduces exposure to individual transmission networks, specific regional energy markets and single jurisdictions and help deliver a more durable and resilient business over the long-term.

Energy market strategy

Regulated markets

Our overall energy market strategy is to enter markets where we believe we can provide benefits to the local energy markets and communities. In the case of regulated energy markets (such as BC), we look for regions where the power market is in structural renewable energy oversupply, e.g. excess renewable energy capacity still being built and/or declining industrial and manufacturing demand).

Declining demand and increasing supply in a regulated market means that the regulatory pricing model may have to contemplate raising power prices in order to deliver the required return to the regulated utility provider. See an illustrative regulated pricing formula below:

Without new load entering these markets and providing an additional revenue line to the utility, there may be a risk that power prices paid by incumbent users rise. This then potentially creates a negative spiral where some power users are unable to pay their higher power bill and need to close down. This, in turn, may lead to even more pricing increases which then impacts on another group of power users who can no longer afford the higher power prices.

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In this context, we believe that introducing our incremental load to regulated oversupplied renewable energy markets may offer a substantial benefit through bringing additional revenue to the market (helping to support lower power prices for broader energy market participants per the above).

Deregulated markets

We believe many Western deregulated energy markets have been affected by a variety of events over the past decade, including:

We believe these market dynamics have created substantial volatility in power prices in some markets where those markets can swing quickly from oversupply to undersupply. In addition, without the system flexibility issue being solved (i.e. load supporting a network of intermittent generation), legacy fossil fuel generators may not be able to be retired in the near term.

We target these volatile markets where, through introducing new, flexible load, our data centers are able to utilize low-cost power during periods of oversupply (e.g. excess intermittent renewable energy) and then reduce energy consumption during certain high price time periods when the market is in undersupply (e.g. solar/wind output is insufficient or during an extreme weather event).

Cost of electricity

The average variable cost of electricity for our current operations is approximately US$0.0398 per kWh, as of September 30, 2021. In addition, we pay a standing monthly charge of approximately US$6.85 per kVA, as of September 30, 2021, assuming full load uptime. We are targeting an average electricity cost of US$0.02-$0.04 per kWh following the development of our expansion sites, with potential to achieve US$0.01-$0.02 per kWh at some of the expansion sites through demand response, ancillary services provision and load management.

Regional and community strategy

Our strategy is based upon entering markets that have a high penetration of renewables and where our operations can help provide benefits to the local energy markets and communities.

Establishing a social license in the regions in which we operate is a core focus. For example, we believe we may help stimulate economic activity and employment in regional communities which have been impacted by the decline in traditional industries, such as manufacturing and industrial operations, while helping to position these regions at the forefront of emerging technology-related growth sectors to help provide economic diversification.

We provide funding for local community recreational infrastructure and volunteer groups and also look to partner with schools and educational institutions to develop programs to train maintenance technicians, network specialists and other operations staff. Iris Energy is committed to working with and supporting the communities in which we operate. We also look to partner with and support local First Nations and Indigenous communities where we operate.

Recent initiatives in BC include:

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Mining Pool Participation

As part of our mining operations, we contribute our hashrate to a global mining pool (e.g. Antpool), subject to their terms of service. In simple terms, Antpool calculates and pays us our share of the statistically expected global Bitcoin reward, which is a function of: (a) our actual daily hashrate and (b) global network difficulty (fixed approximately every two weeks and ultimately represents the average global hashrate based on block time for the prior period). Antpool pays us Bitcoin daily in arrears for our mathematically calculated share of global block rewards (net of fees to Antpool) plus our share of global transaction fees. The Bitcoin are transferred to our exchange account on the same day.

Growth Opportunities

Develop existing sites

In addition to our first site in BC, as of September 30, 2021, we have conditional and unconditional rights to a number of sites across BC (e.g. Mackenzie and Prince George), Texas (USA) and Asia-Pacific, over which we are currently pursuing development activities.

Upon development of these sites, we target up to approximately 1 GW of aggregate power capacity, which would support our operating and contracted nameplate hashrate capacity of 15.2 EH/s (approximately 530 MW of data center capacity when online and fully operational), as well as provide capacity for additional future growth.

Add new sites with favorable energy arrangements

We continue to explore additional sites to build our global platform, both within existing markets in Canada, the U.S. and Asia-Pacific and new markets where we believe we can obtain favorable energy arrangements and provide benefits to the local energy markets and communities.

Own, develop and operate renewable generation

We believe there is potential opportunity in the future to build and operate our own renewable generation and energy storage assets to lower our overall cost of power, generate additional revenue streams and support energy markets. We are particularly well-positioned to pursue this opportunity given our management team’s substantial and proven track record in financing, developing, building and managing large-scale greenfield renewable energy projects and associated grid connections.

Leverage potential platform opportunities

While our core infrastructure will be deployed to mine Bitcoin, there may be future potential to diversify our revenues into alternate uses of our platform, including:

Consider pursuing strategic acquisitions

We may strategically assess acquisition opportunities where we believe such transactions can accelerate our strategic roadmap through horizontal or vertical integration, expanding capacity, or gaining intellectual property that may help strengthen our competitive advantage.

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Risks Related to our Business

Investing in our Ordinary shares involves substantial risk. You should carefully consider all the information in this prospectus prior to investing in our Ordinary shares. There are several risks related to our business and our ability to leverage our strengths and execute our strategies described elsewhere in this prospectus that are described under “Risk Factors” elsewhere in this prospectus. Among these important risks are risks associated with the following:

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Company Information

We were originally incorporated under the laws of New South Wales, Australia, on November 6, 2018 as “Iris Energy Pty Ltd” an Australian proprietary company (ACN 629 842 799). On October 7, 2021, we converted into a public company named “Iris Energy Limited” under Australian law.

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