Sun ecosystem DeFi overview

The Sun platform discussed in this article is one of the key players in the Tron ecosystem.

What is the Sun?

Sun Ecosystem, also known as Sun.io, is the leading DeFi ecosystem on the Tron blockchain platform. It includes the decentralized exchange (DEX) SunSwap and the SunPum launchpad platform for running meme tokens.

Sun represents the first all-in-one platform on Tron for stablecoin exchange, liquidity mining, and decentralized administration (DAO). After the update, Sun.io became the first platform in the Tron ecosystem to support stablecoin exchanges.

According to the DeFi Llama service for April 2025, the amount of blocked assets (TVL) in the Sun protocol is $925 million. This indicator shows that Sun ranks second among DeFi protocols in the Tron ecosystem after the JustLend lending platform.

Sun ecosystem

The first and key product of the Sun Ecosystem is the SunSwap decentralized exchange (DEX), which enables the exchange of tokens such as TRX, SUN, BTT, BTC, BFT, and USDD stablecoin, as well as adding liquidity and generating revenue from trading commissions.

The SunSwap platform operates on the principle of an automated market maker (AMM), like popular decentralized exchanges Uniswap and Balancer. It is designed to optimize trading processes and reduce slippage when exchanging digital assets.

The second important Sun Ecosystem product is the SunPump Launchpad platform, which allows SunPump tokens to run on the Tron blockchain and is one of the main competitors to Pump.fun, which operates in the Solana ecosystem.

SunPump is specifically designed to facilitate the issue of meme tokens and raise initial liquidity. Well-known meme tokens such as Sundog (SUNDOG), Tron Bull (BULL), Suncat (SUNCAT), and Invest Zone (IVfun) have been issued on the SunPump platform.

In addition to the products listed above, Sun's ecosystem also includes SunCurve, a platform for launching and exchanging SunPump-like stablecoins, and the PSM stablecoin trading module, which provides a peg to the US dollar for tokens issued on the Sun.io platform.

The Sun token

SUN is a native Sun Ecosystem management token. The SUN token was initially issued and distributed in September 2020 (before the massive DeFi boom) in what is known as pre-mining (Genesis Mining). 19.9 million SUN tokens were issued, which is the maximum supply.

However, due to the high cost of the SUN token, the Sun Ecosystem team rebranded the token to lower the entry threshold for new users. The old tokens, which are now known as SUNOLD, were denominated at a ratio of 1:1000 and converted into new tokens, which were named Sun [New]. As a result of the denomination, the total supply of SUN tokens increased by a thousand times to 19.9 billion.

However, according to the CoinMarketCap monitoring service for April 2025, only about half of the new SUN tokens are circulating on the market — 9.84 billion. At the same time, the SUN token has no maximum supply, which makes it an inflationary asset. This means that in the future, SUN issuance may increase due to community decisions, in which case an increase in investor demand will be necessary to maintain the asset's price.

The new tokens were distributed through both genesis-mining and governance-mining. The remaining unallocated SUN tokens will engage users in the ecosystem and support its growth through various grants and initiatives.

After the rebranding, SUN has become a multi-functional token and is used in the ecosystem as:

A payment instrument in Solar Energy services: SUN tokens are used to pay for electricity and serve as an alternative to traditional, more costly payment methods such as fiat currencies;
Mining asset: users can contribute their tokens to liquidity pools, in return receiving rewards in SUN tokens;
Management token: SUN token holders can propose and vote on changes to the Sun ecosystem proposed by other community members;
Liquid token: users can block SUN.

As of April 2025, the SUN token is worth $0.01 and has a market capitalization of $328 million. According to CoinMarketCap, this altcoin ranks 127th among all existing cryptocurrencies.

However, since its relaunch and placement on trading platforms, the Sun [New] token has fallen in price by 33%. Relative to its all-time high (ATH), recorded at $0.054 in October 2021, the altcoin's rate has fallen by 68%. Nevertheless, the SUN token is among the top five cryptocurrencies in the Tron ecosystem, behind only Tron (TRX), BitTorrent [New] (BTT), and APENFT (NFT).