Made In Britain: MMO Anodes Manufactured On Site

We are delighted to announced that we are now manufacturing Mixed Metal Oxide Anodes (MMOs) at our specialist UK foundry, following a long-standing tradition of producing high quality anodes in the UK for more than 50 years.

Adding the MMO production to the UK allows us greater control over our production flexibility helps us ensure we continue to offer our customers the reliability they have come to expect from Jennings Anodes.


MMO anodes provide a stable and durable solution for Impressed Current Cathodic Protection (ICCP) systems. They consist of a titanium base that is coated in a specially formulated mix of iridium tantalum and iridium ruthenium. This coating can be amended to suit different environments or current outputs. The consumption rate of the coating can be extremely slow so that the anodes can be designed to last 30, 40 or 50 years.

Originally developed for the electrolytic production of chlorine and hypochlorites, the exceptional stability of MMO coated titanium anodes means they are now commonplace in cathodic protection applications. Light and easy to install, they are specially formulated to withstand the simultaneous effects of oxygen and chlorine. MMOs are an ideal solution in dilute sea water or fresh water containing low chloride levels. They are also highly durable in acidic media and therefore often used in deep underground applications.


Operated by a team of experienced engineers, our foundry has the capacity to produce items of up to five meters long and 7000kg in weight – capabilities unrivalled by most foundries. We have more than 400 people working in our foundries and have been making anodes for more than 50 years. 

MMO Tubular Anode Production
MMO Tubular Anode Production
Jennings Anodes MMO Anode Production Workshop
MMO Anode Production Workshop

We have supplied castings and anodes to the likes of GE, Tesla, Siemens, Shell, BP, Saudi Aramco, Exxon and many other industry leaders.

At Jennings Anodes, we pride ourselves on manufacturing our products to the strictest quality, traceability and international standards. Our casting process ensures optimum anode performance and lifespan. We employ rigorous internal testing standards, in addition to third party testing, to guarantee a high-quality product.

Wherever feasible, each anode is stamped with a unique serial and cast number for quality tracking and after-sales service, ensuring any issues can be easily identified and resolved.

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