He Did Not Build Binance from Zero
If we start reading CZ only in 2017, Binance looks like a sudden startup: an engineer encountered the ICO boom and built the world's largest exchange within months.
But CZ did not begin learning how to build an exchange at age 40. He moved from Jiangsu to Vancouver at around age 12, later went to Montreal to study computer science at McGill, and an internship in Tokyo brought him into the trading-systems industry. He then developed futures-trading systems at Bloomberg Tradebook.
One source conflict must be stated clearly: earlier public profiles often called CZ a McGill graduate; in a 2026 long-form interview, he said that he did not return to complete the program and later obtained a computer-science degree through a US distance-learning institution. The more accurate wording is therefore “studied at McGill,” not “graduated from McGill.”
The Missing Middle: First Sell Systems to More Than 30 Exchanges
In 2005, at age 28, CZ returned from New York to Shanghai and founded Fusion Systems, moving from “writing systems for others” toward “finding customers and defining the product himself.” After entering the Bitcoin industry in 2013, he founded BijieTech in 2015.
BijieTech's business was concrete: it supplied exchanges with front ends, back ends, and mobile applications, charging a monthly systems-service fee. In a 2018 interview, CZ said the team sold about 30 systems. A copy of the Binance white paper self-reported first-year revenue of RMB 36.1 million and positive cash flow from day one. The latter figures have not been independently audited and cannot be treated as verified profit; however, the willingness of more than 30 exchanges to use and pay for the system shows that the trading engine had already completed a B2B validation before Binance.
This is the part of CZ's story that is easiest to skip and most valuable: Binance did not begin with an exchange concept followed by a system built from scratch. The order was the reverse—a system that customers had already bought, followed later by his own exchange.
The Turn at 40: SaaS Becomes an Operated Platform
CZ recalled that BijieTech's exchange customers gradually shut down after China's regulations tightened. For a SaaS company, this was not slower market growth; an entire class of customers had been cleared away at once.
The team did not look for another software niche. It moved into the customer's position, using the engine once sold to exchanges to operate its own crypto exchange. In business terms, this was vertical integration: instead of earning system-service fees from customers, the company entered the market for trading fees earned by those customers directly.
The 2017 product combination was not merely “a faster system”:
- Start with crypto-to-crypto trading, temporarily avoiding the complexity of bank rails and fiat settlement;
- offer more tradable assets during the ICO boom;
- use a trading engine already validated by BijieTech customers;
- enter with a 0.1% base fee, then use BNB fee discounts to encourage token use;
- design language, community, and operations for global users from day one.
Early materials said the system could process about 1.4 million orders per second and that the spot base fee was 0.1%. These were Binance's external claims in 2017, not third-party performance tests. A 2017 CZ interview
Technology Does Not Distribute Itself
Attributing all of Binance's growth to CZ leaves out the other half of entrepreneurship. In an interview, Yi He said she was good at brand, marketing, and operations but needed a technical partner; she chose CZ because of that complementarity. Yi He's interview
Binance's early flywheel was therefore not driven by a lone engineering genius, but by two sets of capabilities locking together: CZ and the technical team ensured matching, stability, and product tempo; Yi He and the operations team brought brand, community, customer support, and user growth. Technology made trading possible; distribution brought liquidity in.
Geographic Migration Eventually Became Organizational Capability
Geographic migration remains a useful lens for reading CZ, but it cannot be the sole explanation. Vancouver and Montreal changed his language and educational environment; Tokyo and New York brought trading-systems experience; Shanghai completed his transition from engineer to founder and then crypto entrepreneur.
After September 2017, Binance's team and operating base left Shanghai, and the company increasingly depended on cross-border teams, multiple entities, and operations across jurisdictions. CZ pushed this organizational idea toward “no headquarters”; but having no single traditional headquarters does not mean having no employee locations, customer markets, legal entities, or regulated business.
“Canceling geography is the end of geographic migration” is only half right. The fuller conclusion is that CZ pushed cross-border capability to an extreme, but jurisdictions eventually caught up with the company again.
Five Months to the Top, and the Bill for Speed
In 2023, CZ pleaded guilty to the US Department of Justice over Binance's failure to establish an effective anti-money-laundering program and resigned as CEO; Binance also pleaded guilty and agreed to pay about $4.3 billion. In 2024, CZ was sentenced to four months in prison.
Later legal events should not be compressed into “the case is over”: the SEC dropped a separate civil enforcement case in 2025, which did not overturn the criminal plea; CZ later received a US presidential pardon, which likewise does not mean that a court had declared him innocent.
The most valuable thing to retain from this section is not legal terminology but a product-operations question: what are you trading for speed?
Reaching number one in trading volume after five months and later spending four months in prison were not unrelated outcomes. They were the two ends of the same machine: one end combined systems, assets, teams, and markets at extreme speed; the other was a compliance system that did not mature at the same speed as the business.