1. Limited market capitalization - Sparton Resources Inc has a relatively small market capitalization compared to its peers, which limits its ability to attract investors and raise capital.

2. Narrow focus - The company's focus on mineral exploration and development in Canada and China limits its exposure to other potentially lucrative markets and commodities.

3. Limited revenue streams - Sparton Resources Inc generates most of its revenue from mineral exploration and development, which can be unpredictable and subject to market fluctuations.

4. High operating costs - The company's exploration and development activities require significant capital investment, which can result in high operating costs and lower profitability.

5. Limited track record - Sparton Resources Inc has a relatively short track record compared to its peers, which can make it more difficult to establish credibility and attract investors.

6. Limited diversification - The company's focus on mineral exploration and development in specific regions and commodities limits its ability to diversify its operations and mitigate risk.

7. Limited resources - Sparton Resources Inc has limited financial and human resources compared to its peers, which can limit its ability to compete effectively in the market.