Exhibit 99.1

Sea Limited Reports Fourth Quarter and Full Year 2018 Results

Singapore, February 27, 2019 – Sea Limited (NYSE: SE) (“Sea” or the “Company”) today announced its financial results for the fourth quarter and full year ended December 31, 2018.

Highlights

Guidance

For the full year of 2019, we currently expect adjusted revenue for digital entertainment to be between US$1.2 billion and US$1.3 billion, representing 81.5% to 96.7% growth from 2018.

We currently expect adjusted revenue for e-commerce for the full year of 2019 to be between US$630 million and US$660 million, representing year-on-year growth of 116.7% to 127.0%.

Fourth Quarter 2018 Key Metrics

Full Year 2018 Key Metrics

¹ Marketplace revenue mainly consists of commission and advertising income and revenue generated from other value-added services.

² Product revenue mainly consists of revenue generated from direct sales.

Strategic Business Updates

Digital Entertainment

In 2018, Garena recorded strong results and materially expanded our digital entertainment business from being a PC-focused regional publisher to a leading global developer and publisher, with core strengths in mobile games and a key focus on emerging markets. In the fourth quarter of 2018, our adjusted revenue from mobile games, self-developed game, and regions outside our current core markets accounted for 85.1%, 44.5% and 28.0% of our total digital entertainment adjusted revenue, respectively.

Our game development studio in Shanghai now has more than 200 developers focused on enhancing our existing game and building out our pipeline of self-developed games. Our first global self-developed hit game, Free Fire, is now one of the world’s most popular mobile battle royale titles. According to App Annie, for the full year of 2018, Free Fire was the fourth most downloaded game across the Apple App Store and the Google Play Store combined. It has also hit the milestone of recording more than 100 million monthly active users. Moreover, since late 2018, we have been rolling out our first global eSports tournament for Free Fire, the Free Fire World Cup.

Meanwhile, we continued to strengthen our relationships with our long-term game publishing partners and leading global developers to enhance Garena’s portfolio of top quality content. In January 2019, we launched Speed Drifters, a localized version of Tencent’s hit game QQ Speed. Speed Drifters is the first game from the Tencent portfolio published under our recently announced right of first refusal arrangement with Tencent. Furthermore, we have agreed with PUBG Corporation to bring into several of our key markets in Southeast Asia PUBG LITE, a PC game adapted from their global hit game PUBG.

E-commerce

Shopee saw sustained strong growth in the fourth quarter and full year of 2018, with GMV, orders, and adjusted revenue each increasing sharply, and sales and marketing expenses as a percentage of GMV continuing to decline.

Just three years since the launch of the platform, Shopee’s annual GMV has exceeded US$10 billion. We believe that Shopee’s rapid growth and ascent to regional market leadership over such a short period of time reflects the success of our strategy to build a mobile-centric, socially engaging marketplace with the right product category focus and with integrated and comprehensive user services – as well as our ability to execute this strategy efficiently and effectively.

Shopee continues to scale with increasing efficiency as it enjoys the increasingly powerful flywheel effects of an e-commerce marketplace. During the fourth quarter, we saw robust consumer engagement in our large-scale sales events for 11.11 and 12.12. We set a new record for orders in a single day with more than 12 million orders recorded over the 24 hours of December 12, 2018. Approximately 5.4 million of those orders were recorded in Indonesia alone.

While the level of user engagement in the fourth quarter of 2018 broke all previous records, Shopee’s sales and marketing expenses as a percentage of GMV declined further during the fourth quarter to 5.4%, compared to 5.7% in the third quarter of 2018. Moreover, shipping subsidies fell in absolute dollar terms in the fourth quarter compared to the third quarter, even as GMV and order numbers continued to grow sharply.

Our focus on engaging with sellers and enhancing the online shopping experience for buyers is also delivering strong financial results for Shopee. During the fourth quarter, e-commerce adjusted revenue reached US$126.9 million, up 1,261.9% year-on-year from US$9.3 million for the fourth quarter of 2017 and up 78.2% quarter-on-quarter from US$71.2 million for the third quarter of 2018. This strong growth in revenue was primarily driven by the expansion of our e-commerce marketplace, as we deepened our relationships and engagement with sellers and buyers, and enhanced our e-commerce ecosystem. Ramping up monetization in tandem with promoting the efficient growth of the Shopee ecosystem will continue to be our key focus for 2019.

Unaudited Summary of Financial Results

(Amounts are expressed in thousands of US dollars “$”)

⁽¹⁾ For a discussion of the use of non-GAAP financial measures, see “Non-GAAP Financial Measures.” The 2017 comparative numbers for adjusted net loss were restated due to a change in computation basis in 2018 to exclude impact from changes in fair value of convertible notes.

⁽²⁾ Unallocated expenses are mainly related to share-based compensation and general and corporate administrative costs such as professional fees and other miscellaneous items that are not allocated to segments. These expenses are excluded from segment results as they are not reviewed by the Chief Operation Decision Maker (“CODM”) as part of segment performance.

Three Months Ended December 31, 2018 Compared to Three Months Ended December 31, 2017

Revenue

The table below sets forth revenue generated from our reported segments. Amounts are expressed in thousands of US dollars (“$”).

Our total revenue increased by 127.3% to US$283.2 million in the fourth quarter of 2018 from US$124.6 million in the fourth quarter of 2017. Our total adjusted revenue increased by 136.6% to US$389.3 million in the fourth quarter of 2018 from US$164.5 million in the fourth quarter of 2017. These increases were mainly driven by the growth in each of the segments detailed as follows:

Cost of Revenue

Our total cost of revenue increased by 188.1% to US$291.2 million in the fourth quarter of 2018 from US$101.1 million in the fourth quarter of 2017.

Sales and Marketing Expenses

Our total sales and marketing expenses increased by 32.6% to US$207.5 million in the fourth quarter of 2018 from US$156.4 million in the fourth quarter of 2017. The table below sets forth the breakdown of our sales and marketing expenses of our two major reporting segments. Amounts are expressed in thousands of US dollars (“$”).

Sales and marketing expenses as a percentage of adjusted revenue decreased to 6.1% in the fourth quarter of 2018 from 11.9% in the fourth quarter of 2017 as we continue to improve the efficiency of our marketing efforts.

Sales and marketing expenses as a percentage of GMV decreased to 5.4% in the fourth quarter of 2018 from 8.5% in the fourth quarter of 2017 as we continue to improve the efficiency of our marketing efforts and leverage organic user acquisition opportunities.

General and Administrative Expenses

Our general and administrative expenses increased by 68.4% to US$87.2 million in the fourth quarter of 2018 from US$51.8 million in the fourth quarter of 2017. This increase was primarily due to the expansion of our staff force, the increase in office facilities and related expenses, impairment loss on our assets, as well as the increase in professional fees and other expenses.

Research and Development Expenses

Our research and development expenses increased by 207.3% to US$26.6 million in the fourth quarter of 2018 from US$8.7 million in the fourth quarter of 2017, primarily due to the increase in our research and development staff force as we expanded and enriched our product offerings.

Non-operating Income or Losses, Net

Non-operating income or losses consists of interest income, interest expense, investment gain (loss), fair value change for convertible notes and foreign exchange gain (loss). The amount was a net non-operating income of US$53.0 million in the fourth quarter of 2018, compared to a net non-operating loss of US$62.3 million in the fourth quarter of 2017. The non-operating gain in 2018 was primarily due to a fair value gain of US$61.2 million in this quarter on the convertible notes issued before our initial public offering partially offset by interest expense on our convertible notes issued in 2018, while the net non-operating loss in 2017 was primarily due to a fair value loss of US$52.0 million in the quarter on the convertible notes issued before our initial public offering coupled with interest expense on these convertible notes.

Income Tax Expense

We had a net income tax expense of US$3.0 million and US$8.7 million despite a group net loss position in the fourth quarter of 2018 and 2017, respectively. This was primarily due to withholding tax and corporate income tax expenses incurred by our digital entertainment segment, partially offset by deferred tax assets recognized during the period.

Share of Results of Equity Investees

We had share of losses of equity investees of US$1.1 million in the fourth quarter of 2018, compared with a loss of US$1.0 million in the fourth quarter of 2017.

Net Loss

As a result of the foregoing, we had net losses of US$276.1 million and US$263.1 million in the fourth quarter of 2018 and 2017, respectively.

Adjusted Net Loss

Adjusted net loss, which is net loss adjusted to remove share-based compensation expenses and fair value change for convertible notes, was US$321.2 million and US$199.6 million in the fourth quarter of 2018 and 2017, respectively.

Full Year Ended December 31, 2018 Compared to Full Year Ended December 31, 2017

Revenue

The table below sets forth revenue generated from our reported segments. Amounts are expressed in thousands of US dollars (“$”).

Our total revenue increased by 99.7% to US$827.0 million for the full year ended December 31, 2018 from US$414.2 million for the full year ended December 31, 2017. Our total adjusted revenue increased by 89.4% to US$1,048.7 million for the full year ended December 31, 2018 from US$553.6 million for the full year ended December 31, 2017. These increases were mainly driven by the growth in each of the segments detailed as follows:

Cost of Revenue

Our total cost of revenue increased by 148.5% to US$812.2 million for the full year ended December 31, 2018 from US$326.9 million for the full year ended December 31, 2017. This increase was in line with the overall growth of our businesses:

Sales and Marketing Expenses

Our total sales and marketing expenses increased by 65.5% to US$705.0 million for the full year ended December 31, 2018 from US$426.0 million for the full year ended December 31, 2017. The table below set forth the breakdown of our sales and marketing expenses of our two major reporting segments. Amounts are expressed in thousands of US dollars (“$”).

Sales and marketing expenses as a percentage of adjusted revenue decreased to 10.3% for the full year ended December 31, 2018 from 12.4% for the full year ended December 31, 2017 as we continue to improve the efficiency of our marketing efforts.

Sales and marketing expenses as a percentage of GMV decreased to 5.9% for the full year ended December 31, 2018 from 8.3% for the full year ended December 31, 2017 as we continue to improve the efficiency of our marketing efforts and leverage organic user acquisition opportunities.

General and Administrative Expenses

Our general and administrative expenses increased by 74.6% to US$240.8 million for the full year ended December 31, 2018 from US$137.9 million for the full year ended December 31, 2017. This increase was primarily due to the expansion of our staff force, the increase in office facilities and related expenses, impairment loss on our assets, as well as the increase in professional fees and other expenses.

Research and Development Expenses

Our research and development expenses increased by 130.3% to US$67.5 million for the full year ended December 31, 2018 from US$29.3 million for the full year ended December 31, 2017, primarily due to an increase in research and development staff force as we expanded and enriched our product offerings.

Non-operating Income or Losses, Net

Non-operating income or losses consists of interest income, interest expense, investment gain (loss), fair value change for convertible notes and foreign exchange gain (loss). The amount was a net non-operating income of US$34.9 million for the full year ended December 31, 2018, compared to a net non-operating loss of US$46.2 million for the full year ended December 31, 2017. The net non-operating income in 2018 was primarily due to a fair value gain of US$41.3 million on the convertible notes issued before our initial public offering partially offset by interest expenses on our convertible notes, while the net non-operating loss in 2017 was primarily due to a fair value loss of US$52.0 million and interest expenses on the convertible notes, partially offset by an investment gain arising from the disposal of and a net gain arising from re-measurement of our investments.

Income Tax Expense

We had an income tax expense of US$4.1 million and US$10.7 million despite a group net loss position for the full year ended December 31, 2018 and 2017, respectively. This was primarily due to withholding tax and corporate income tax expenses incurred on our digital entertainment segment, partially offset by deferred tax assets recognized during the year.

Share of Results of Equity Investees

We had share of losses of equity investees of US$3.1 million for the full year ended December 31, 2018, compared with US$1.9 million for the full year ended December 31, 2017.

Net Loss

As a result of the foregoing, we had net losses of US$961.0 million and US$561.2 million for the full year ended December 31, 2018 and 2017, respectively.

Adjusted Net Loss

Adjusted net loss, which is net loss adjusted to remove share-based compensation expenses and fair value change for convertible notes, was US$944.2 million and US$480.6 million for the full year ended December 31, 2018 and 2017, respectively.

Webcast and Conference Call Information

The Company’s management will host a conference call today to review Sea’s business and financial performance.

Details of the conference call and webcast are as follows:

Passcode for Participants: 7169346

A replay of the conference call will be available at the Company’s investor relations website (https://www.seagroup.com/investor/financials). An archived webcast will be available at the same link above.

For enquiries, please contact:

Investors / analysts: ir@seagroup.com

Media: media@seagroup.com

About Sea Limited

Sea’s mission is to better the lives of the consumers and small businesses of our region with technology. Our region includes the key markets of Indonesia, Taiwan, Vietnam, Thailand, the Philippines, Malaysia and Singapore. Sea operates three platforms across digital entertainment, e-commerce, and digital financial services, known as Garena, Shopee, and AirPay, respectively.

Forward-Looking Statements

This announcement contains forward-looking statements. These statements are made under the “safe harbor” provisions of the U.S. Private Securities Litigation Reform Act of 1995. These forward-looking statements can be identified by terminology such as “will,” “expects,” “anticipates,” “future,” “intends,” “plans,” “believes,” “estimates,” “confident,” “guidance,” and similar statements. Among other things, statements that are not historical facts, including statements about Sea’s beliefs and expectations, the business, financial and market outlook, and projections from its management in this announcement, as well as Sea’s strategic and operational plans, contain forward-looking statements. Sea may also make written or oral forward-looking statements in its periodic reports to the U.S. Securities and Exchange Commission (the “SEC”), in its annual report to shareholders, in press releases, and other written materials, and in oral statements made by its officers, directors, or employees to third parties. Forward-looking statements involve inherent risks and uncertainties. A number of factors could cause actual results to differ materially from those contained in any forward-looking statement, including but not limited to the following: Sea’s goals and strategies; its future business development, financial condition, financial results, and results of operations; the growth in, and market size of, the digital entertainment, e-commerce and digital financial services industries in the region, including segments within those industries; changes in its revenue, costs or expenditures; its ability to continue to source, develop and offer new and attractive online games and to offer other engaging digital entertainment content; the growth of its digital entertainment, e-commerce and digital financial services platforms; the growth in its user base, level of user engagement, and monetization; its ability to continue to develop new technologies and/or upgrade its existing technologies; growth and trends of its markets and competition in its industries; government policies and regulations relating to its industries; and general economic and business conditions in the region. Further information regarding these and other risks is included in Sea’s filings with the SEC. All information provided in this press release and in the attachments is as of the date of this press release, and Sea undertakes no obligation to update any forward-looking statement, except as required under applicable law.

Non-GAAP Financial Measures

To supplement our consolidated financial statements, which are prepared and presented in accordance with U.S. GAAP, we use the following non-GAAP financial measures to help evaluate our operating performance:

These non-GAAP financial measures have limitations as analytical tools. None of the above financial measures should be considered in isolation or construed as an alternative to revenue, net loss/income, or any other measure of performance or as an indicator of our operating performance. These non-GAAP financial measures presented here may not be comparable to similarly titled measures presented by other companies. Other companies may calculate similarly titled measures differently, limiting their usefulness as comparative measures to Sea’s data. We compensate for these limitations by reconciling the non-GAAP financial measures to their nearest U.S. GAAP financial measures, all of which should be considered when evaluating our performance. We encourage you to review our financial information in its entirety and not rely on any single financial measure.

The tables below present selected financial information of our reporting segments, the non-GAAP financial measures that are most directly comparable to GAAP financial measures, and the related reconciliations between the financial measures. Amounts are expressed in thousands of US dollars (“$”).

⁽¹⁾ For the fourth quarter of 2018, revenue of $121,660 included marketplace revenue of $82,483 and product revenue of $39,177 net of sales incentives. For the fourth quarter of 2017, revenue of $4,966 included marketplace revenue of $4,558 and product revenue of $408, net of sales incentives.

⁽²⁾ For the fourth quarter of 2018, adjusted revenue of $126,914 included marketplace revenue of $87,618 and product revenue of $39,296. For the fourth quarter of 2017, adjusted revenue of $9,319 included marketplace revenue of $8,911 and product revenue of $408, net of sales incentives.

⁽³⁾ A combination of multiple business activities that does not meet the quantitative thresholds to qualify as reportable segments are grouped together as “Other Services.”

⁽⁴⁾ Unallocated expenses are mainly related to share-based compensation and general and corporate administrative costs such as professional fees and other miscellaneous items that are not allocated to segments. The expenses are excluded from segment results as they are not reviewed by the CODM as part of segment performance.

⁽¹⁾ For the year of 2018, revenue of $269,578 included marketplace revenue of $176,434 and product revenue of $93,144, net of sales incentives. For the year of 2017, revenue of $9,034 included marketplace revenue of $8,626 and product revenue of $408, net of sales incentives.

⁽²⁾ For the year of 2018, adjusted revenue of $290,706 included marketplace revenue of $197,285 and product revenue of $93,421. For the year of 2017, adjusted revenue of $17,717 included marketplace revenue of $17,309 and product revenue of $408, net of sales incentives.

⁽³⁾ A combination of multiple business activities that does not meet the quantitative thresholds to qualify as reportable segments are grouped together as “Other Services.”

⁽⁴⁾ Unallocated expenses are mainly related to share-based compensation and general and corporate administrative costs such as professional fees and other miscellaneous items that are not allocated to segments. The expenses are excluded from segment results as they are not reviewed by the CODM as part of segment performance.

UNAUDITED INTERIM CONDENSED CONSOLIDATED STATEMENT OF OPERATIONS

Amounts expressed in thousands of US dollars (“$”) except for number of shares & per share data

⁽¹⁾ For a discussion of the use of non-GAAP financial measures, see “Non-GAAP Financial Measures.”

UNAUDITED INTERIM CONDENSED CONSOLIDATED BALANCE SHEETS

Amounts expressed in thousands of US dollars (“$”)

UNAUDITED INTERIM CONDENSED CONSOLIDATED BALANCE SHEETS

Amounts expressed in thousands of US dollars (“$”)

UNAUDITED INTERIM CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS

Amounts expressed in thousands of US dollars (“$”)

The Company has three reportable segments, namely digital entertainment, e-commerce and digital financial services. The Chief Operation Decision Maker (“CODM”) reviews the performance of each segment based on revenue and certain key operating metrics of the operations and uses these results for the purposes of allocating resources to and evaluating the financial performance of each segment. Amounts are expressed in thousands of US dollars (“$”).

⁽¹⁾ A combination of multiple business activities that does not meet the quantitative thresholds to qualify as reportable segments are grouped together as “Other Services.”

⁽²⁾ Unallocated expenses are mainly related to share-based compensation and general and corporate administrative costs such as professional fees and other miscellaneous items that are not allocated to segments. The expenses are excluded from segment results as they are not reviewed by the CODM as part of segment performance.

SUPPLEMENTAL OPERATIONAL METRICS