Ethereum Classic (ETC) is a blockchain platform centered around smart contracts, sharing many similar features with Ethereum. The ETC ecosystem is also continuously evolving, currently consisting mainly of the following parts:

1. Blockchain Infrastructure

Smart Contracts and Decentralized Applications (DApps): ETC supports Turing-complete smart contracts, allowing developers to build and deploy decentralized applications on this platform.

Account Model: ETC uses an account model to represent user states and balances, similar to Ethereum, which helps developers build applications.

2. Decentralized Finance (DeFi)

DeFi Applications: Although the activity in the DeFi space is lower than Ethereum, there are already some basic DeFi tools and projects on ETC that are exploring richer financial application scenarios.

3. Developer Support

Tools and SDKs: ETC supports many development tools and SDKs (such as Truffle, Remix, etc.) to help developers with contract development and testing.

Developer Community: ETC has an active developer community committed to improving network security and scalability while promoting more application development.

4. Community and Governance

Community Governance: Ethereum Classic has a very conservative attitude towards governance, emphasizing the principle of 'Code is Law', with governance conducted through the core development team and open discussion platforms.

Authority Settlement Mechanism: ETC adopts an authority settlement mechanism to make the blockchain's development and upgrade processes transparent, with direction determined collectively by the community.

5. Ecosystem Partnerships

Enterprise Collaboration: Some enterprises utilize ETC for the development of blockchain solutions, although not as widely as Ethereum, they are working to expand applications.

Cross-Chain Interoperability: Projects are being researched and developed to create interoperability solutions with other blockchains to enhance ETC's use in cross-chain scenarios.

6. Developing Tools and Services

Block Explorers and Other Tools: ETC has multiple block explorers providing blockchain data query services, and there are also some node services and wallet tools to support users and developers.

Overall, the Ethereum Classic ecosystem is still expanding and evolving. Although its growth rate is slower compared to Ethereum, its commitment to decentralization and immutability attracts a certain user and developer community. The future development of ETC will depend on progress made in security, scalability, and application support.