1. Limited geographical diversification - Rockex Mining Corporation operates primarily in Canada, which limits its exposure to other potentially lucrative mining markets around the world.

2. Smaller scale operations - Compared to some of its peers, Rockex Mining Corporation is a relatively small company with limited resources and a smaller portfolio of mining projects.

3. Limited financial resources - The company has struggled to secure adequate funding for its projects, which has hindered its ability to expand and compete with larger mining companies.

4. Lack of established partnerships - Rockex Mining Corporation has not established many partnerships with other mining companies or industry players, which limits its ability to leverage the expertise and resources of others.

5. Dependence on iron ore - The company's focus on iron ore mining leaves it vulnerable to fluctuations in the global iron ore market, which can impact its profitability and growth potential.

6. Limited technological capabilities - Rockex Mining Corporation may not have access to the latest mining technologies and techniques, which could put it at a disadvantage compared to more technologically advanced peers.

7. Environmental and social concerns - The mining industry is increasingly under scrutiny for its impact on the environment and local communities. Rockex Mining Corporation may face challenges in meeting these expectations and regulations, which could impact its reputation and ability to operate.