Bioplastics, plastics made from a biological feedstock, could be a renewable and more sustainable alternative to fossil-based plastics. Unlike the vast majority of fossil-based plastics, many bioplastics are biodegradable, which could help provide a solution to the dizzying escalation in plastic waste seen across much of the world.

And although bioplastics have historically struggled to deliver the same performance as fossil-based plastics, technology is increasingly closing the gap, creating highly functional plastics that do not cost the Earth. “Bioplastics 2020-2025”, the recent report by IDTechEx, explores the emerging technologies around bioplastics and forecasts the future of the industry over the next five years. 

Despite the clear environmental advantages, bioplastics still only have about a 0.5% market share of the global plastics industry. Even more worryingly for the bioplastics industry, this tiny market share has been fairly consistent for the last few years, meaning that bioplastics are not gaining ground on fossil-based plastics. This raises the question – why aren’t bioplastics growing faster? The short answer is price. In general, consumers are willing to pay a bit extra for a green product, but only up to a point – the majority are happy to pay 5% extra for a green product, but this drops rapidly if the price difference grows any further.

Unfortunately, bioplastics can be costly to produce and can only compete on price with fossil-based plastics if oil prices are high. Around seven years ago, oil prices were steadily growing, and the future looked bright for the bioplastics industry.  Then, in 2014, oil prices crashed, throwing the bioplastics industry into turmoil. In the following years, many major bioplastics companies went out of business or rebranded. After spending over $300 million on a bioplastics production plant, Metabolix abandoned the project, changing its name to Yield10 Bioscience and changing its focus to agritech.

In January 2020, Italian PHA producer Bio-On was declared bankrupt, less than a year after having been valued at over $1 billion. CEO Marco Astorri was arrested in October 2019, following accusations of false accounting and market manipulation. The prices of fossil-based plastics are closely tied to oil prices. Falling oil prices have had a major impact on the bioplastics industry. Source: IDTechEx Research – “Bioplastics 2020-2025” Since 2014-2015, the bioplastics industry has struggled to get back on its feet.

However, production has been steadily growing, as improvements in technology allow for cheaper production and an increasing global focus on sustainability makes bioplastics an increasingly attractive option for many governments. Companies, such as Corbion and Avantium, have been successfully developing partnerships with major food and beverage companies, with Avantium recently winning the support of Carlsberg and Coca-Cola for its plant-based bottle that the company claims can biodegrade in a year.

Sustainable tech company Anellotech recently announced construction of a plant capable of producing 40,000 tonnes per year of biologically derived aromatic compounds, valuable starting materials for bioplastic production. In 2016, Metabolic Explorer announced the construction of a plant able to produce 50,000 tonnes per year of biobased 1,3-propanediol, another important starting material in bioplastic production.