Displaying items by tag: Japan

Japan: Sumitomo Osaka Cement says that independent tests have confirmed that the radioactivity levels of cement produced at its 0.9Mt/yr Tochigi plant in Sano, Tochigi Prefecture are “below the lowest detectable limit,” meaning that the product is safe. The company said, “We hope that you will continue to use our products with peace of mind.”

Production at the plant was disrupted in 2011 when it was discovered that it was co-processing sewage sludge sourced from near the Fukushima Daiichi Nuclear Power Plant in Ōkuma, Fukushima Prefecture. The power plant suffered a nuclear meltdown following the Tōhoku earthquake and tsunami in 2011 that led to widespread radioactive fallout.

Japan: Sumitomo Osaka Cement has started using Michibiki, a Japanese satellite positioning system, as part of a demonstration project by its limestone mining operations to improve efficiency. At present the company uses so-called ‘internet of things’ technology such as yard inventory management by drone and rough stone quality management by heavy equipment, including loaders and dump trucks, equipped with Global Positioning System (GPS) tablet terminals. The group operates eight limestone mines in Japan and it mines 20Mt/yr.

In case you missed it, last week we covered a news story about Taiheiyo Cement’s plans to step up its lithium-ion battery recycling business at its integrated Tsuruga plant. It’s the latest step in the Japan-based cement producer’s collaboration with recycling company Matsuda Sangyo. The work is timely given that electric cars accounted for 2.6% of global car sales in 2019 and this share is growing. Many of these electric vehicles use lithium-ion batteries and moving away from fossil fuel powered transport creates new problems such as how to manage old batteries that can no longer be used.

Figure 1: Lithium-ion battery recycling process by Taiheiyo Cement and Matsuda Sangyo. Source: Translated from Taiheiyo Cement CEMS technical magazine.

Taiheiyo Cement and Matsuda Sangyo have been working on their process since 2011. First, they dismantle the batteries to extract base metals and plastics. They then heat the batteries in a dedicated ‘roaster’ using waste heat from the cement production process, before crushing and sorting them to remove cobalt, lithium, aluminium and scrap iron. Hydrogen fluoride produced in this stage is sent to the kiln where it is detoxified by calcium. Remaining elements from the battery that are not reclaimed are then used as an alternative fuel by the cement plant.

Taiheiyo Cement says that its roasting equipment can process up to 10t/day but it’s difficult at this stage to assess what demand for this service they might encounter. If, one estimate of 2m/yr used lithium-ion batteries by 2030 is correct and Taiheiyo Cement’s processing rate doesn’t get much higher, then 500 cement plants could possibly solve this problem. Yet, Taiheiyo Cement and Matsuda Sangyo have made no mention of the economics of their process. Other recycling methods also exist and research into new ones is ongoing. Cement plants recycling batteries might be economic compared to these alternatives or it might not, only time will tell.

The wider point here is that here is yet another industrial and logistical process that can potentially be linked to cement production. It follows well known ones, such as using alternatives fuels or captive power plants, or more novel ones, such as CO₂ or hydrogen networks. In each case the business of making cement changes as new methods are learned, new commodities are sought and new markets are connected. The cement company then has a choice about how involved it wants to become with each new process. The classic example here is the waste processing companies that surround co-processing, with some cement companies having their own dedicated subsidiaries, for example LafargeHolcim and Geocycle.

As it all becomes more complicated the role of a cement plant slowly becomes redefined. If a cement plant disposes of municipal waste and car batteries for its local community, generates electricity from its solar or wind plant for a nearby city and uses its CO₂ to either produce biofuels, plastics or baking soda is it still just a cement plant? The pivot by building materials manufacturers in recent years from a focus on cement to concrete suggests that once the societal or economic conditions are right it could change. For the time being cement plants remain cement plants but give it a thought next time you buy a new car.

Japan: Taiheiyo Cement recorded a net profit between 1 March 2020 and 30 June 2020, the first quarter of the 2021 financial year, of US$30.6m, down by 42% year-on-year from US$52.6m in the first quarter of the 2020 financial year. Sales fell by 3% to US$1.88bn from US$1.94bn. The company said that the coronavirus outbreak affected sales in all regions.

Japan: Taiheiyo Cement is starting large-scale recycling of large lithium-ion batteries at its integrated Tsuruga plant. It has been developing the process with Matsuda Sangyo since 2011 using exhaust gases from clinker production as part of dismantling, crushing and sorting processes to extract precious metals from the batteries. Taiheiyo Cement, its subsidiary Tsuruga Cement and Matsuda Sangyo started a recycling business in April 2020 following certification by the Japan Auto Recycling Partnership (JARP).

Japan: A proposal by Mitsubishi Group on researching CO₂ injection into concrete has been approved for a grant from the New Energy and Industrial Technology Development Organisation (NEDO). This joint project between Mitsubishi Group, Kajima Corporation, and Chugoku Electric Power aims to improve the existing technology so that it can be applied to the reinforced and cast-in-place concretes used in building construction. At present the group said that current carbon-recycling techniques are mainly used for unreinforced concretes, such as concrete blocks.

Mitsubishi Group has already been involved in the development of concrete projects that take advantage of carbon-recycling, including a zero-emission concrete called CO₂-SUICOM. It added that carbon capture, utilisation and storage (CCUS) technologies, including carbon-recycling, are an excellent opportunity for the company to use its strengths between industries that both emit and use CO₂.

Japan: Sumitomo Osaka Cement is working on a three year CO₂ mineralisation research project from 2020 to 2022 with Yamaguchi University, Kyushu University and the New Energy and Industrial Technology Development Organisation (NEDO). The initiative plans to develop the technology to build a process that captures CO₂ exhaust from cement and power plants and then mineralises it with calcium-containing waste materials. It intends to use the process practically in 2030.

Japan: Taiheiyo Cement has installed three BWZ bucket elevators and a Louise TKF drag chain conveyor supplied by the Hong Kong-based subsidiary of Aumund at its new power plant at Ofunato. The cement producer uses both biomass and coal at the plant.

Two elevators and the drag chain conveyor are used to transport palm kernel shells (PKS) and palm empty fruit bunches (EFB), which are used as alternative fuels in the power plant. Each has a capacity of up to 150t/hr. The conveying concept is designed so that the different materials are kept apart and enter the silo buffer tanks separately. The third bucket elevator is used for coal handling. It is a gravity discharge type BWZ-S elevator with a capacity of up to 35t/hr.

April 2020 data from the Japanese Cement Association (JCA) suggests that Japan has avoided the worst effects of the coronavirus outbreak. The industry’s total sales fell by 2.4% year-on-year to 16.4Mt in the first four months of 2020 from 16.8Mt in the same period in 2019. This is the kind of change associated with business as usual market trends, rather than the 20% declines seen elsewhere around the world in association to the coronavirus. In part this reflects the country’s case and mortality rate, which are far lower than other Group of Seven (G7) countries. The reasons for this may be due to lower levels of testing, less stringent lockdown measures and a more effective public health strategy. That last point is perhaps even more impressive given the population’s high median age (47.3). Whatever the reasons, the overall effect on the construction materials business seems low.

Graph 1: Cement production, sales, imports and exports in Japan. Source: Japanese Cement Association.

Graph 1 above shows the Japanese cement market in a historical context. Production peaked in the mid 1990s at a little below 100Mt/yr followed by a decline to above 40Mt/yr since 2010. This informs the current situation once one removes any effects from the health emergency. As Naoki Ono, the chairman of the JCA and the chief executive officer (CEO) of Mitsubishi Materials, described it in late May 2020, domestic demand for cement fell by 3.8% year-on-year to 41Mt in 2019. He blamed this on the completion of construction work for the 2020 Tokyo Olympic and Paralympic Games, the end of a period of rebuilding following natural disasters and a shortage of manpower.

All of this may explain why Taiheiyo Cement announced the acquisition of a 15% stake in state-owned Semen Indonesia subsidiary Solusi Bangun Indonesia in April 2020. At the time the producer said explicitly that the partnership with Semen Indonesia was part of Taiheiyo Cement’s response to a, “forecasted long-term decline in domestic cement demand in Japan.” Given the competiveness of the Indonesian market it seems like a brave move given the country’s overcapacity, the departure of LafargeHolcim and the arrival of China’s Anhui Conch. Meanwhile at home, Mitsubishi Materials and Ube Industries said in February 2020 that the companies were discussing a potential merger of their cement businesses. The letter of intent suggests a schedule of late September 2020 to sign a definitive agreement and a target of April 2022 to complete the integration. This follows the two companies working together since 1998 on a joint venture called Ube-Mitsubishi Cement, which integrated their cement sales and logistics operations. Mitsubishi Materials and Ube Industries are the third and fourth largest producers by production capacity in the country. A merger would potentially give the combined entity the same production base as the largest producer, Taiheiyo Cement.

Taiheiyo Cement’s experience in its 2020 financial year to 31 March 2020 was in line with Naoki Ono’s summary above, with both sales and profits down. Its domestic sales volumes decreased by 5% to 14.5Mt, although exports rose by 11% to 3.9Mt. In its financial report it highlighted its key foreign markets in the US, China, Vietnam and the Philippines. Despite increasing its sales in its 2020 financial year, Sumitomo Osaka Cement’s operating income and profits fell. It blamed this on energy costs, principally coal, and other raw material inputs. It has since published its next medium-term management plan. This includes a number of measures such as cutting costs and looking at overseas expansion. Both Mitsubishi Materials and Ube Industries reported similar reductions in their sales and profits. Mitsubishi Materials noted that it had observed a decrease in cement shipment due to the construction delay caused by the coronavirus.

Ratings company R&I is optimistic about the Japanese market following the start to 2020. In a recent news release it concluded that domestic cement demand is ‘solid’ for the next few years due to order backlog and anticipated infrastructure projects. In its assessment local producers have been improving their cost structures since 2010 in ways that should support ‘certain levels of profit’ provided domestic demand remains around 40Mt/yr. In the medium to longer term though it still expects domestic demand to decrease slowly. Hence, the overseas expansion, merger and acquisition activity and cost cutting plans of the larger producers. Long trends aside, the Japanese cement sector is coping well so far with the global health pandemic.

Japan: The Japan Cement Association (JCA) has reported that cement demand has resumed its pre-coronavirus outbreak levels, with all planned construction projects from mid-May 2020 going ahead. R&I News has reported that this follows the suspension of multiple major works during the crisis, leading to a domestic demand of 3.19Mt in April 2020, down by 7% year-on-year from 3.43Mt in April 2019. Although the JCA’s 2020 cement consumption forecast is 41.0Mt, the lowest since 1990, contractors will reportedly have a backlog of projects “even after the completion of projects related to the Tokyo Olympics and Paralympics,” suggesting the likelihood of a considerable rise in demand year-on-year in 2021, set against a moderate decrease in the medium to long term.