4M Carbon Corp. (Knoxville, Tennessee, USA) and Montefibre Carbon Fiber (Miranda de Ebro, Spain) announced that they are finalizing a letter of intent to establish a partnership between the two companies, including one that may be located in the United States. Joint venture (JV). 4M is currently a fully reported SEC (United States) Securities and Exchange Commission entity that said it will accelerate 4M / Montefibre's initial public offering and list it in the United States. In this collaboration, 4M and Montefibre plan to combine Montefibre's large tow carbon fiber PAN precursor with 4M's low-cost carbon fiber production technology to develop low-cost industrial-grade carbon fiber. According to reports, 4M's patented technology can reduce the initial investment of the carbon fiber production line by as much as 50%, and save continuous operating costs by more than 30%, which is likely to achieve rapid growth in low-cost carbon fiber production capacity. It is said that Montefibre ’s ultra-large tow technology was developed with the continued financial support of the Spanish government and can reduce the cost of carbon fiber precursors by increasing production.