This article aims to analyse the specifics of the Republic of Kazakhstan’s international activities by examining the country’s pursuit of consensus between cooperation under the Belt and Road Initiative (BRI) and the execution of the United Nations Sustainable Development Goal 7 (SDG 7), which focuses on affordable and clean energy. The research employs diverse qualitative and quantitative metrics to assess the impact of the BRI and SDGs on enhancing international cooperation, particularly within the context of Kazakh foreign policy relations. Key materials include decrees, strategies, and reports from the Republic of Kazakhstan and China, as well as data from the UN and various statistical agencies. The findings highlight the significant role of Kazakhstan in supporting transports, logistics, economic, and other connections between China and Europe via the BRI. The study reveals that while Kazakhstan has made progress in aligning with SDG 7, challenges remain due to the environmental impact of large-scale Chinese investments. The analysis underscores the need for Kazakhstan to balance economic benefits with environmental sustainability and to integrate robust regulatory frameworks to ensure compliance with SDG 7. The research concludes that international collaboration and the integration of environmental sustainability principles into economic policies are crucial for Kazakhstan to achieve its sustainability goals. While the country has initiated reforms for a ‘green’ transition, significant reforms are still required to fully align with SDG 7 and enhance its international reputation. The study emphasizes the importance of a multi-vector foreign policy and continuous engagement with global partners to realize large-scale international initiatives and improve energy regulation compliance.