<p>Remanufacturing is one of the strategies which may lead to sustainability in the production and consumption of electronics products by extending the life cycle of e-waste. Consumer concerns about component wastage may lead to a lack of trust in remanufactured products. To increase consumers' willingness to pay, the original equipment manufacturers are inclined to use blockchain technology to provide transparent product information. To assess the ramifications of blockchain technology adoption strategies within the remanufacturing supply chain under an outsourcing remanufacturing model, this study formulates a two-period dynamic decision model encompassing three stages of decision-making before and after blockchain implementation, coupled with a cost-sharing contract. Our findings can be divided into three parts. (1) When consumers assign higher value discounts to remanufactured products and the unit cost of using blockchain is low, the original equipment manufacturer tends to adopt blockchain technology, which can expand scrap recycling rates and promote sales of remanufactured products. At this point, if the fixed cost of implementing blockchain is low, the original equipment manufacturer and the third-party remanufacturer are encouraged to jointly adopt blockchain technology. (2) When the ratio of carbon emissions from remanufactured products to new products is relatively high and the unit costs of employing blockchain are comparatively low, the environmental impact is minimized when supply chain members collectively embrace blockchain. (3) Implementing a cost-sharing agreement will increase the willingness of both parties to adopt blockchain technology and facilitate the coordination of the remanufacturing supply chain.</p>