1. Fee Overview
REC Marketplace charges trading fees on marketplace transactions. These fees help maintain the platform, fund smart contract audits, and support the renewable energy ecosystem.
There are no fees for issuing (minting) RECs — you only pay the blockchain gas fee in BNB on BSC Mainnet.
2. Trading Fees
USDT Transactions: 3% buyer fee + 3% seller fee (6% total). For example, a buyer purchasing 10 RECs at 45 USDT each pays 450 + 13.50 = 463.50 USDT; the seller receives 450 − 13.50 = 436.50 USDT.
RECEN Transactions: 1.5% buyer fee + 1.5% seller fee (3% total). Trading with RECEN tokens effectively halves your total fee burden compared to USDT. This incentive is designed to encourage adoption of the platform's native token.
All fees are enforced on-chain by the marketplace contract and capped at 10% per side by a hard-coded safety limit.
3. REC Pricing
Sellers choose their own per-unit price in USDT when listing a REC. The RECEN-denominated price is automatically derived from the current USDT price via the on-chain conversion rate (default 23 RECEN = 45 USDT).
During issuance, the Create REC page automatically suggests a price based on the live KPX (Korea Power Exchange) REC spot price with a 10% premium. Sellers may adjust this when listing on the secondary market.
The total value of a listing depends on quantity × pricePerUnit. Buyers may purchase partial quantities from a listing.
4. Blockchain Gas Fees
All blockchain transactions require gas fees paid in BNB on BSC Mainnet. Gas fees are separate from platform trading fees and are determined by network congestion.
Gas fees apply to: minting new RECs, listing RECs on the marketplace, purchasing RECs, transferring RECs to another wallet, retiring (burning) RECs.
BSC Mainnet gas fees are typically very low (usually under $0.10 per transaction), making frequent interactions economical.
5. Fee Collection
Trading fees are automatically collected by the marketplace smart contract at the time of transaction. No manual invoicing or billing is required.
The buyer fee is deducted from the buyer's total payment. The seller fee is deducted from the seller's proceeds. Both halves flow to the platform admin wallet in the same transaction.
6. Free Actions
The following actions are free of platform fees (gas fees still apply): creating/minting new REC certificates, merging multiple RECs of the same energy type, viewing your dashboard and portfolio, browsing the marketplace, connecting/disconnecting your wallet.
7. Fee Changes
Fee structures may be updated through platform governance. Any changes will be announced at least 7 days in advance and will only apply to transactions after the effective date. Historical transactions are not affected by fee changes. The on-chain 10%-per-side cap ensures fees can never exceed safe limits.