HCS Score
Red Line Violations
Research Opinion, Not a Fatwa
These are absolute prohibitions in Islamic finance. If any red line is triggered, the asset is automatically classified as HARAM.
Ecosystem Riba Exposure
Not directly or indirectly connected to interest generating mechanisms
Gambling / Betting
No gambling or betting mechanism
Haram Industry
Not involved in haram industry
Based on Red Line Screening and HCS Scoring.
Haram / Non Compliant
This cryptocurrency is evaluated as Haram for investment and use because the asset demonstrates material Sharia compliance concerns within the CoinStudy HCS framework.
Explanation
This asset shows significant concerns related to Sharia compliance, financial structure, or speculative design.
Reviewed by
CoinStudy Shariah Board
TRON has an extensive DeFi ecosystem built on its low-cost, high-throughput blockchain infrastructure.
When our Shariah Board Chairman Dr. Usman Quddus confirmed that "using the Tron network is permissible," that ruling established one of the most important distinctions CoinStudy makes across our TRON ecosystem analysis series. The TRON network itself passes as neutral infrastructure. But the financial products built on top of TRON are evaluated entirely on their own mechanisms, independent of the network's permissibility.
JUST represents the clearest example of why this distinction matters so directly. CoinStudy classifies TRX at 82 out of 100 Halal. The JUST protocol, which runs on TRON, is the governance mechanism over JustLend DAO, one of the largest interest-based lending protocols in the entire DeFi ecosystem.
Between these two assessments lies the most important principle in Islamic finance evaluation of blockchain projects: the infrastructure's permissibility does not transfer to the applications. TRON can be Halal. JUST can be Haram. Both statements are correct simultaneously.
We ran JST through the full CoinStudy Halal Crypto Standard (HCS) methodology with comprehensive research into JustLend DAO's complete 2026 developments. Here is the complete picture.
JST fails the CoinStudy HCS Sharia red-line screening. Three red lines are triggered, specifically Ecosystem Riba Exposure, Guaranteed Interest, and Synthetic Interest Products, resulting in an automatic Haram classification with no further scoring.
JustLend DAO is explicitly and by its own documentation an interest-based lending and borrowing protocol where suppliers earn interest income from borrowers. JST governance covers this interest-based ecosystem and derives its value from the growth of prohibited financial activity. The compliance conclusion is both clear and direct.
JUST is the DeFi ecosystem platform built on the TRON blockchain that currently centers on JustLend DAO, the leading decentralized lending protocol on TRON, and JustStables, the collateralized debt position system for minting USDJ stablecoin.
The JUST ecosystem offers lending, stablecoin issuance, staking, and energy rental services. JST is the core governance token of the entire ecosystem. JST holders participate in protocol governance through locking JST to obtain voting rights and participating in JustLend Improvement Proposals. JST is also used to pay the 2% annual stability fee on USDJ vault debt in the JustStables system.
The JST buyback and burn program uses eligible protocol revenue from lending and USDD growth to purchase JST from the open market and permanently remove it from circulation. In October 2025, 559 million JST representing 5.6% of total supply was burned using $17.7 million from protocol revenue, with an additional $41 million earmarked for phased burns through 2026.
This buyback mechanism creates a specific and explicit connection between JST's deflationary value and the interest income generated by JustLend DAO's lending operations. JST holders benefit directly from the protocol's interest-based revenue through this burn mechanism, regardless of whether they personally use the lending products.
JustLend DAO is the primary and most economically significant product in the JUST ecosystem. Understanding its mechanism precisely is essential because the compliance failures arise directly from what it does.
JustLend DAO operates as a pooled money market protocol. Suppliers deposit crypto assets into the protocol's lending pools. The protocol makes these assets available to borrowers who provide collateral exceeding the loan value. Borrowers pay ongoing interest fees calculated as a percentage of the outstanding loan balance. The interest rate is determined algorithmically based on the utilization rate of each lending pool: when more of the pool is borrowed, rates rise automatically to attract more suppliers and discourage further borrowing.
Suppliers can withdraw their assets at any time. The interest income accrues to suppliers proportionally to their deposited amount and the time elapsed. This is the textbook structure of interest-bearing deposit and lending.
The JustLend DAO whitepaper states this explicitly: it is "a TRON-based decentralized lending protocol that provides a distributed and secure market where users can receive loans and earn interest." The protocol's own documentation leaves no ambiguity about its primary economic activity.
In June 2026, JustLend DAO launched Supply and Borrow Market V2, a lending framework that took effect on June 17, 2026, introducing isolated lending markets and updated risk controls. On June 20, 2026, JustLend DAO added the U stablecoin as a new lending market, allowing users to supply and borrow U directly on the protocol. These 2026 developments confirm that JustLend DAO is actively expanding its interest-based lending operations rather than transitioning away from them.
JustStables is the collateralized debt position system in the JUST ecosystem where users deposit TRX as collateral into personal CDP vaults and mint USDJ stablecoins against that collateral.
The JST token's direct utility in this system is paying the 2% annual stability fee on USDJ vault debt. This stability fee functions as interest charged on the outstanding USDJ debt position. When a user mints USDJ against TRX collateral, they incur a 2% annual fee on the outstanding USDJ amount, paid in JST tokens.
This stability fee is structurally identical to the mechanism that makes Sky Protocol (formerly MakerDAO) Haram in CoinStudy's analysis. A user deposits collateral, creates a debt denominated in a stablecoin, and pays an ongoing percentage-based fee on that debt over time. The fee is a predetermined percentage applied to outstanding debt over time, which is the defining characteristic of interest under Islamic finance principles.
JST's direct function is paying this interest-like fee. Not merely governing the ecosystem that charges it. The token is the instrument through which the interest-like stability fee is settled.
The USDJ stablecoin itself has been substantially wound down in 2026 per Justin Sun's confirmation that over 95% of USDJ supply was redeemed. The JUST ecosystem has shifted focus toward USDD as the primary stablecoin. However JustStables with its CDP and stability fee mechanism remains operational, and JST's utility in paying stability fees on remaining USDJ debt positions continues.
USDD, the TRON DAO Reserve's decentralized stablecoin, is deeply integrated with the JUST ecosystem. JustLend DAO offers USDD lending markets. The JST buyback and burn program is funded partly from USDD growth alongside lending revenue.
CoinStudy has already classified USDD as Haram due to its staking APY mechanism generating ongoing percentage-based returns to USDD stakers, its USDT and USDC reserve components, and its algorithmic TRX relationship. The integration of USDD into JustLend DAO's lending markets means the JUST ecosystem now incorporates compliance concerns from both its own lending mechanism and from USDD's structure within those markets.
Some investors argue that JST primarily functions as a governance token and that governance utility might be evaluated separately from the underlying protocol's lending activity.
This argument fails for three specific and direct reasons in JST's case.
First, JST's value is explicitly and directly connected to JustLend DAO's lending revenue through the buyback and burn program. When JustLend DAO generates more interest income from lending, more revenue is available to buy back and burn JST. The governance token's value appreciates directly when the interest-based lending protocol generates more prohibited income.
Second, JST holders do not merely govern an ecosystem that incidentally contains lending. They govern specifically and primarily a lending protocol. The JIPs that JST holders vote on include interest rate parameters, collateral types for lending, risk ratios, and lending market additions. Governance rights over the specific parameters of prohibited financial mechanisms make JST holders more directly connected to those mechanisms than typical governance token holders.
Third, JST is the specific instrument used to pay the stability fee on USDJ collateralized debt positions. This is not incidental connection through governance. It is direct use of the token to settle an interest-like charge on a debt instrument.
None of these connections is incidental or peripheral. All three are documented in JUST's own official materials and reflect deliberate design choices about JST's role in the ecosystem.
Muslim investors who have followed CoinStudy's comprehensive TRON ecosystem analysis understand the pattern that runs throughout.
TRON (TRX) scores 82 out of 100 Halal. The chairman confirmed: "Using the Tron network is permissible." Network infrastructure is neutral and passes all red lines cleanly.
JustLend DAO is Haram. The protocol is explicitly an interest-based lending market where suppliers earn interest from borrowers.
USDD is Haram. The staking APY mechanism, USDT and USDC reserve assets, and algorithmic structure trigger multiple red lines.
SUN Token is Haram. The veSUN mechanism distributes fees from interest-based lending and SunX perpetual futures activity to token lockers.
BTT is Haram. The 7.34% APY staking product and JustLend DeFi lending promotion form core financial utility.
AINFT is Haram. JustLend lending integration is promoted as core token financial utility.
JST is Haram. Governance over JustLend's lending markets, stability fee payment utility for USDJ debt, and buyback funding from lending interest income all create direct Riba connections.
The pattern is completely consistent. TRON's foundational infrastructure is permissible neutral technology. Every financial product built on TRON that generates returns through interest-based lending, fixed yields, or debt service fees fails the Islamic finance assessment on its own merits. The infrastructure is clean. The applications are not.
It is worth noting that JST's Haram classification is among the more direct governance token Haram classifications in our series, for reasons that go beyond the typical "value tied to prohibited ecosystem growth" argument.
Most governance token Haram classifications in our exchange token series result from the token's economic dependence on prohibited activities even when the token itself has no direct mechanical connection to those activities. BNB is Haram because its value grows when Binance's earn products attract deposits.
JST's classification is more specific because JST is not merely economically dependent on a prohibited ecosystem. JST is directly used as the payment instrument for stability fees on USDJ debt positions. The token's designated utility includes settling interest-like charges on collateralized debt. This is a more direct connection between the token's mechanism and prohibited financial activity than most governance tokens carry.
JustLend DAO is not a peripheral feature of the JUST ecosystem. It is the primary and central product, accounting for the majority of the ecosystem's total value locked and generating the majority of protocol revenue that funds the JST buyback and burn program.
The Riba concern is at the core of what JUST is. It is not an incidental association with prohibited activity through third-party application development. JustLend DAO's own whitepaper defines the protocol as providing a market "where users can receive loans and earn interest." This is the most explicit Riba statement CoinStudy has encountered in any protocol's own documentation.
JustLend DAO provides ongoing percentage-based interest income to suppliers. The June 2026 Supply and Borrow Market V2 upgrade and the U stablecoin lending market addition both expanded the interest-earning opportunities within the protocol rather than reducing or eliminating them. The protocol is actively growing its interest-based lending operations in 2026.
JST as the payment token for USDJ stability fees creates a synthetic interest product connection at the token mechanism level. The 2% annual stability fee on USDJ vault debt, denominated in JST, constitutes a synthetic interest charge on outstanding debt that JST's utility directly facilitates.
Ecosystem Riba Exposure — ❌ Failed. JustLend DAO is explicitly an interest-based lending protocol by its own documentation. Suppliers earn interest from borrowers. June 2026 expansions including V2 upgrade and U stablecoin lending market actively grow this interest-based lending operation. JST governance covers and derives value from this entire ecosystem.
Gambling and Betting — ✅ Passed.
Haram Industry — ✅ Passed.
Guaranteed Interest — ❌ Failed. JustLend DAO provides ongoing percentage-based interest income to suppliers in all its lending markets. The JST buyback program funded by lending revenue explicitly confirms interest income as the primary funding source.
Synthetic Interest Products — ❌ Failed. The USDJ stability fee paid in JST, the USDD lending markets within JustLend DAO, and the collateralized debt position mechanisms all function as synthetic interest-bearing products in economic structure and effect.
Three red lines failed. Under the CoinStudy HCS framework, any single red-line failure results in an automatic Haram classification. Three failures makes this result definitive.
Layer 2 scoring is skipped entirely.
Overall Result: Haram — Red Line Violations
CoinStudy's analysis of the TRON ecosystem consistently reflects the infrastructure neutrality principle while being honest about where that principle applies and where it does not.
Using the TRON network for legitimate transactions is permissible per the chairman's direct ruling. Transferring USDT for payment purposes on TRON is individually permissible under the chairman's medium-of-exchange ruling despite USDT's structural Haram classification.
Using JustLend DAO to supply assets and earn interest income is Haram. Using JustStables to create USDJ CDP vaults and incur stability fee obligations is Haram. Holding JST as an investment in an ecosystem whose primary value driver is interest income from lending is Haram.
The same TRON user can be using the network permissibly for payments while simultaneously using JustLend impermissibly for lending income. CoinStudy's analysis distinguishes these clearly. The network is permissible. The lending protocol is not. Muslim investors using TRON should be aware of which specific products they interact with and understand that the network's permissibility does not extend to its financial applications.
Before investing in JUST or using JustLend DAO's products, ask yourself honestly.
Do I understand that JustLend DAO's own whitepaper defines it as a protocol "where users can receive loans and earn interest" and that this is not an indirect or incidental compliance concern but the protocol's explicitly stated primary purpose? Am I aware that the JST buyback and burn program, which reduces JST supply to increase scarcity and value, is funded by interest income from JustLend DAO's lending operations, meaning JST value appreciation is explicitly dependent on growing prohibited financial activity? Do I understand that JST is the specific payment token for the 2% annual stability fee on USDJ collateralized debt, making it directly mechanically connected to an interest-like debt service charge? Am I distinguishing between using the TRON network for payments, which is permissible, and using JustLend DAO for lending income or JST for governance participation in this ecosystem, which is Haram? Would I be comfortable explaining JustLend DAO's supplier-borrower interest mechanism to Dr. Usman Quddus, who has already confirmed "taking profit on a loan is Haram in Islamic jurisprudence"?
JUST (JST) is classified as Haram / Non-Compliant under the CoinStudy Halal Crypto Standard.
Three Sharia red lines are triggered, specifically Ecosystem Riba Exposure, Guaranteed Interest, and Synthetic Interest Products, resulting in automatic Haram classification. JustLend DAO is explicitly by its own documentation an interest-based lending protocol where suppliers earn interest from borrowers. The June 2026 Supply and Borrow Market V2 upgrade and U stablecoin lending market addition confirm active 2026 expansion of interest-based lending operations. The JST buyback and burn program funded by lending interest income creates explicit economic dependence on prohibited financial activity. JST's direct utility in paying stability fees on USDJ collateralized debt creates a mechanical connection to prohibited debt service charges beyond typical governance token exposure.
The TRON network's 82 out of 100 Halal classification and the chairman's direct ruling that using the TRON network is permissible remain completely unchanged. What changes between TRON's assessment and JST's assessment is the complete and honest application of the infrastructure neutrality principle. The infrastructure is permissible. The interest-based lending protocol built on it, and the governance token whose value and utility are directly tied to that protocol's interest income, are not.
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Disclaimer: This analysis is provided for educational and research purposes only. This analysis is based on guidance from CoinStudy's HCS Shariah Board members including the chairman's direct confirmation that "taking profit on a loan is Haram in Islamic jurisprudence." CoinStudy does not issue personal fatwas or financial advice. Please consult a qualified Islamic scholar for individual guidance.
Guaranteed Interest
No guaranteed interest obligations
Synthetic Interest Products
No synthetic interest instruments
3 Red Lines Failed
This asset is automatically classified as HARAM.
