The packaging industry's significant role in plastic production and environmental pollution underscores the need for more sustainable alternatives. Bioplastics emerge as a promising solution, yet consumer understanding of this innovative material often lags, particularly in emerging markets. This study thus aims to explore effective marketing strategies for communicating bioplastic packaging to shape consumer adoption and disposal practices in such markets. Through a case study approach, we examine the role of ecolabels as a marketing tool across key sectors of the bioplastic packaging supply chain. Drawing upon the signalling theory, we identify key characteristics of effective signals, including costly signalling, visibility, clarity, fitness, consistency and credibility, which should be integrated into a broader context of ecolabels design in order to encourage consumer adoption and responsible disposal. Our study also identifies instances where noises from the environment may have little impact and where communication gaps hinder feedback loops between consumers and producers.